BLM Library ^ ^«§a J ;C D-553A, Building 50 H ^ H^° Denver Federal Center 00 *w P. G. Box 25047 Denver, CO &0E25-0047 U. S. DEPARTMENT OF THE INTERIOR PROTOTYPE OIL SHALE LEASING PROGRAM ^ OIL SHALE TRACT C-b ENVIRONMENTAL MONITORING REPORT (June 1982 through December 1982) Submitted to: Mr. Eric G. Hoffman Deputy Minerals Manager for Oil Shale Oil Shale Office USDI Minerals Management Service 131 Nth 6th Street - Suite 300 Grand Junction, Colorado By: CATHEDRAL BLUFFS SHALE OIL COMPANY TENNECO SHALE OIL COMPANY OCCIDENTAL OIL SHALE, INC. January 15, 1983 VOLUME NUMBER III * 2.7 Industrial Health and Safety 2.7.1 2.7.2 Accident Frequency Analysis Mine Gas Monitoring 3.0 OTHER STUDIES 3.1 Fish and Wildlife Management Plan (Inactive) 3.2 Microenvironmental Studies 3.3 Scenic Values Study (Inactive) 3.4 Traffic Load 3.5 Geology 4.0 DATA AUTOMATION 4.1 Automation Status 4.2 Station Computer Code 4.3 Station Coordinates 5.0 SPECIAL REPORTS 6.0 REPORT DISTRIBUTION LIST TABLE OF CONTENTS BIOLOGY 2.5.1 Terrestrial Wildlife Studies 2.5.1.1 Big Game: Mule Deer 2.5.1.2 Medium-Sized Mammals 2.5.1.3 Small Mammals 2.5.1.4 Avifauna 2.5.2 Aquatic Studies 2.5.3 Terrestrial Vegetation Studies 2.5.4 Threatened & Endangered Species 2.5.5 Revegetation 2.5.6 Soil Survey & Productivity Assessment 2.5.7 Dendrochronology S Dendrocl imatology Studies Page 1 1 1-9 1 1 1-1 1 II 1-35 111-39 111-45 111-47 III-221 II 1-241 III-243 III-245 III-247 o 2.5 Riology Studies required by the Interim Monitoring plan are contained in this section and are listed in the table of contents. Several biology monitoring stations were discontinued during the Interim Monitoring Program. Table 2.5-1 presents a list of stations to be continued during this phase. Monitoring stations referenced in this section are located on Figure 2.5-1, Biological Development Monitoring Program. All monitoring stations are referenced by four-digit computer station codes. A cross-reference of the computer codes and station ID appear in section 4.0 (Data Automation). TABLE 2.5-1 BIOLOGICAL MONITORING PROGRAM DURING THE INTERIM PHASE Programs Deer Mortality Deer Age Class Lagomorph Abundance Small Mammals Raptors Aquatic Ecology Benthos Periphyton Water Quality Vegetation Community Structure General Location Computer Code North Side of Piceance Creek BD01 BD02 BD03 BD04 BD05 BD06 BD07 BD08 BD09 BD10 BF01 BA01 to BA49 South Side of Piceance Creek General Area of Tract Identical Locations to Deer Pellet Group Densities Piceance Creek (Development) On-Tract-West Piceance Creek (Control) On-Tract-East Sprinkler Area Section B Sprinkler Area (Control) Sprinkler Area (Development Sprinkler Area (Control) The Entire Tract and Surrounding Study Areas. USGS 09306007 (Control) USGS 09306058 (Development) USGS 09306061 (Development) Piceance Creek Upstream (Control) Piceance Creek Downstream (Development) USGS 09306061 (Development) Plots Chained pinyon juniper (1978) (Dev) Chained pinyon juniper (1978)(Cont) Upland sagebrush (1980)(Cont) Bottomland sagebrush (1980) (Cont) Pinyon juniper woodland (1979) (Dev) Pinyon juniper woodland (1979)(Cont) BG01 BG02 BG03 BG04 BG05 BG11 BG22 BG33 BI01 WU07 WU58 WU61 WP01 WP02 WP03 WU61 BJ01 BJ11 BJ21 BJ02 BJ12 BJ22 BJ03 BJ13 BJ23 BJ04 BJ14 BJ24 BJ05 BJ15 BJ25 BJ06 BJ16 BJ26 Fenced (8'high) - Used for Community Composition and Structure Open Fenced (4 'high) - Used for Herbaceous Productivity and Utilization, TABLE 2.5-1 (CONT) Deer Pellet Group Densities Transect Vegetation Type Location Treatment (Computer Code) CPJ Off Tract Control BA01 BA02 BA03 BA04 BA05 BA06 BA07 BA08 BA09 On Tract BA17 BA18 BA25 BA28 BA29 BA30 BA31 CPJ On Tract Development BA32 Sprinkler BA20 Development BA21 BA23 PJ Off Tract Control BA13 BAH BA15 Development BA10 BAH BA12 BA16 On Tract Control BA19 BA26 BA27 Development BA22 BA24 Brush Beaten* SB Off Tract Development BA41 BA42 BA43 BA44 BA45 BA46 BA47 BA48 BA49 Program General Location Computer Code Micro Climate MC Sta. 1 BC01 BC02 BC03 3C04 BC05 BC06 BC07 BC08 BC09 BC13 Traffic Count Rio Blanco Store BT01 rn BT02 " ' BT03 MC Sta. 1 2 3 4 5 6 7 8 9 13 Rio Blanco Store South of Cattle Guard Rio Blanco Lake TABLE 2.5-1 (CONT) Herb Productivity and Utilization: Same locations as community structure plus the following: 1) Range Cage Averages: Computer Code Vegetation Type Outside Cages Inside Cages CPJ BK01 BK11 US BK03 BK13 BS BK04 BK14 PJ BK05 BK15 2) Topsoil Piles: Location Computer Code #12-West of Mine Support Area BP01 (Seeded in 1978) 3) Brush Beating Areas": Oldland Gulch BU01 Gardenhire Gulch BU02 Control BU03 4) Irrigation/Fertilization Treatment Areas: Computer Treatment Years Fertil ized Rate Code Number 1 Fertilized Lbs/Acre BL11 la Not Fertilized N P BL21 lb Not Fertil ized BL31 3al 1980 100 100 BL41 3bl 1980 100 100 BL51 4al 1980 200 100 BL61 4b 1 1980 200 100 BL32 3a2 1980, 1981 100 100 BL42 3b2 1980, 1981 100 100 BL52 4a2 1980, 1981 200 100 BL62 4b2 1980, 1981 200 100 BL80-0pen Areas Not Ferti lized BL81-Closi Bd Not Fertilized TABLE 2.5-1 (CONT) Shrub Productivity and Utilization: Browse (Bitterbrush) Production & Utilization 77-78, 78-79, 79-80, 80-81 Vegetation Type Location Treatment Transect (Computer Code) CPJ Tract C-b PJ Tract C-b Control BA17 BA18 BA25 BA30 Development BA21 BA23 Development, Sprinkler BA20 Irrigation Big Jimmy Ridge Control Control Development BA32 BA19 BA04 BA06 BA09 BA19 BA26 BA27 BA16 BA22 BA24 General Condition: By Landsat over selected Tract areas - not in computer data base; discontinued during Interim phase. TABLE 2.5-1 (CONT) Biology (Cont'd) Programs: Deer Distribution & Migration and Road Kills Mile Location Computer Code Marker North & East of Piceance Creek Road Meadows; South & West of Piceance Creek Road 41 White River City BN41 BM41 40 Piceance Bridge BN40 BM40 39 Lower Canyon BN39 BM39 38 Piceance Canyon BN38 BM38 37 Yellow Creek BN37 BM37 36 Stinking Springs BN36 BM36 35 Old Bridge BN35 BM35 34 Little Hills Turnoff BN34 BM34 33 Old Corrals & Buildings BN33 BM33 32 Burk Ranch BN32 BM32 31 Ranch BN31 BM31 30 BN30 BM30 29 BN29 BM29 28 Bureau of Mines BN28 BM28 27 Ryan Gulch BN27 BM27 26 Pump Station BN26 BM26 25 BN25 BM25 24 Rock School BN24 BM24 23 AQ 021 BN23 BM23 22 Pat Johnson's Ranch BN22 BM22 21 Hunter Creek BN21 BM21 20 PL Gate BN20 BM20 19 AQ 020 BN19 BM19 18 Sorghum, Cottonwood BN18 BM18 17 Stewart Gulch Rd. BN17 BM17 16 AQ Trailer 022 BN16 BM16 15 Oldland's Ranch BN15 BM15 14 Oldland's Ranch BN14 BM14 13 Pond and Cabin BN13 BM13 12 Sprague Gulch BN12 BM12 11 Cascade Gulch BN11 BM11 10 13 Mile Gulch BN10 BM10 9 14 Mile Gulch BN09 BM09 8 Schutte Gulch BN08 BM08 7 Robinson' s Ranch BN07 BM07 6 BN06 BM06 5 2 Old Cabins (35 MPH Curve) BN05 BM05 4 McCarthy Gulch BN04 BM04 3 Cow Creek BN03 BM03 2 Mahogany Outcropping BN02 BM02 1 Woodward Ranch BN01 BM01 0 Rio Blanco Score BNOO BMOO BIOLOGICAL DEVELOPMENT MONITORING PROGRAM Figure 2.5-1 2.5.1 Terrestrial Wildlife Studies Data were collected in summer 1982 for deer migrational patterns and phenology, road kills, natural mortality, browse production and utilization studies, lagomorph abundance, small mammal populations, and raptor nesting. L1L- e en- 10 2.5.1.1 Big Game: Mule Deer 2.5.1.1.1 Deer Pellet Group Densities Thirty-nine deer pellet transects of 20 - 0.01 acre plots each were sampled in the summer of 1982. Locations of the transects are shown on Figure 2.5-1 (designated as RAS$). Eighteen transects were sampled in chained rangeland areas, 12 were sampled in pinyon-juniper woodland, and 9 were sampled in brush-beaten sage areas. A tabular summary of pellet-group data for 1981-82 is presented in Table 2.5.1.1-1. Results of mule deer pellet-group counts for 1981-82 will be discussed as three topics: 1) a general, non-quantitative, impact evaluation of Tract C-b development activities over the past five years; 2) a quantitative analysis of a local impact, discussed primarily to illustrate one of several analytical procedures; and 3) an evaluation of the present success of the brush-beating mitigation program. Figures summarizing deer pellet-group monitoring data (Figures 2.5.1.1-1 and -2) have been modified this year to accomodate the expanding data base, and to better portray long-term patterns and trends. Transect designations have been ordered from low to high on the basis of mean pellet-group density estimates over the past five years. The figures have been designed to make the following features conspicuous should they occur: 1) a trend toward lower values at transect locations close to development activities, accompanied by a possible trend toward higher values at control areas (indicative of a permanent displacement of deer from areas near development); 2) a temporary shift toward lower values at localized disturbance sites (indicative of short-term displacements); 3) returns to previous density values following localized impacts (indicative of habituation to disturbances); and 4) any consistent pattern in the data that provides insight into the manner in which deer use the area on a year-to-year basis. An impact evaluation of development activities on the local mule deer population over the past five years can be performed in a general way by examination of Figures 2.5.1.1-1 and -2. A dashed line has been drawn to connect data points of the first year, the winter of 1977-78; this year is baseline in that major development activities began during the summer of 1978. A solid line has been drawn through 1981-82 data points merely to highlight this past year. Transect locations originally defined as "development" (in contrast to "control") are circled along the x-axes of both figures. The original development designation was retained to indicate those transects that are in close proximity to major construction activities. Using this criterion of development -control sites, it is clear that deer pellet-group densities have not declined since 1977-78 at the development locations. In addition, there is no indication of a yearly trend toward higher values at control locations. The original designations of development and control transects must necessarily change in certain years, however, since unanticipated disturbances sometimes occur. For example, a drill rig was operating between transects BA06 and PA07 from September 1981 to April 1982. Because of noise and visual disturbances, it was considered likely that wintering deer might be temporarily displaced from the immediate vicinity. This hypothesis was tested mainly to evaluate the sensitivity of deer pellet- group monitoring data in terms of its usefulness in detecting localized impacts. Thus, the purpose of the following discussion is to illustrate an analytical procedure, not to provide an argument that an impact of some TABLE 2.5.1.1-1 Deer pellet group densities, 1981- Transect Mean pellet groups per .01 acre plot +/- SE (n)* Chained range! and: BA17 BA18 BA25 BA20 BA21 BA23 BA01 BA02 BA03 BA04 BA05 BA06 BA07 BA08 BA09 BA30 BA31 BA32 Pinyon-juniper woodland: BA19 BA26 BA27 BA16 BA22 BA24 BA10 BA11 BA12 BA13 BA14 BA15 1 .60 +/- 000 .33(20) 4 .20 + /- 000 .64(20) 4 .90 +/- 000 .61(20) 7 .75 +/- 001 .06(20) 6 .45 +/- 000 .96(20) 4, .00 +/- 000, .81 (20) 4, .70 +/- 000, .59(20) 6, .15 +/- 000, .99(20) 3, .95 +/- 000, .58(20) 7, .05 +/- 000, .83(20) 3, .35 +/- 000, .52(20) 1 , .25 +/- 000, .41 (20) 0, .80 +/- 000, .32(20) 3, .15 +/- 000, .65(20) 0, .50 +/- 000, .21(20) 2, .45 +/- 000, .49(20) 4. .25 +/- 000, .53(20) 6, .70 +/- 000, .76(20) 1 .45 +/- 000.30(20) 1 .25 +/- 000.32(20) 2.95 +/- 000.70(20) 1 .80 +/- 000.43(20) 3.05 +/- 000.56(20) 1 .55 +/- 000.49(20) 1 .25 +/- 000.38(20) 0.95 +/- 000.25(20) 1 .40 +/- 000.39(20) 4.75 +/- 000.80(20) 5.85 +/- 000.93(20) 4.30 +/- 001 .02(20) Brush-beaten sage: BA41 BA42 BA43 BA44 BA45 BA46 BA47 BA48 BA4 9 0.80 +/- 000.25(20) 1 .45 +/- 000.44(20) 0.65 +/- 000.15(20) 7.00 +/- 000.74(20) 1 .25 +/- 000.30(20) 1 .05 +/- 000.25(20) 3.85 +/- 000.75(20) 0.90 +/- 000.20(20) 0.70 +/- 000.21(20) * n = number of 0.01 acre plots sampled. Ill- 12 —■ JZ c 3aov H3d smn'jo iiid jo a 3 awn n !© kD h2 3aov a3d sdnoM9-i3n3d jo dsawnN consequence has occurred. Locations BA06 and RA07 have values for 1981-82 that are lower than any previous year (Figure 2.5.1.1-1), suggesting that deer might well have been displaced by the operation of the drill rig. The null hypothesis of no difference between 1982 pellet-group densities and previous years at transects BA06 and BA07 was tested as follows: differences in density estimates between 1982 values and mean values of all previous years were calculated for each transect location, and expressed as normal deviates (Z = X-X/SD). Values at transects RA06 and BA07 for 1982 were then compared to a table of normal deviates to obtain the probabilities of randomly obtaining values this low. Probabilities for stations BA06 and BA07 respectively were P=.14 (86% level) and P=.f>7 (93% level). The conclusion, therefore, is that deer seem likely to have been displaced by the operation of the drill rig, particularly at BA07 where the confidence level exceeds 90 percent. If BA05 and BA09 are omitted from the analysis (which might be justified since they were near the drill rig as well) confidence levels for both BA06 and BA07 exceed the 95% level. It should be mentioned that the validity of this method strongly depends on the precision of the means for pre-impact years (the more pre-impact, i.e., baseline, years the better). Also it is assumed that the difference between 1982 values and mean values for previous years are normally distributed (thus, the more control transects the better). For the present example, sufficient years and sufficient control transects are available to provide a reasonably strong argument that deer were displaced from the immediate vicinity of the drill rig. An evaluation of the success of sagebrush brush-beating was again evaluated this year using deer-pellet group data. A comparison of differences between treatment and control plots was estimated using a 2-level nested ANOVA (Table 2.5.1-2). Differences were not significant (F=1.09, df=l,7; P=.33). 2.5.1.1.2 Browse Production and Utilization A summary of the past five years of bitterbrush investigations is presented this year in Figures 2.5.1.1-3 and -4. These figures are similar in format to those used for summarizing deer pellet- group data (Figures 2.5.1.1-1 and -2). Also, they have been prepared with the same objectives in mind; namely, to accommodate the expanding data base and to better portray long-term patterns and trends. As elaborated in the deer pellet-group discussion, the new figures facilitate visual inspection of data points suggestive of disturbance effects. It will be noted that the biological variable plotted in Figures 2.5.1.1-3 and -4 is percent utilization. This variable is considered a more important browse measurement than degree of hedging—length of shoots remaining after winter browsing (see Section 2.5.1.1.7, Interrelationships). Estimates of hedging, however, as well as browse production are presented in Table 2.5.1.1-3. TABLE 2.5.1.1-2 Comparison of mule deer pellet-group counts In brush- beaten sagebrush with control areas. TWO-LEVEL NESTED ANOVA: Source of Variation Variance Components Between brush-beaten and control areas Among subgroup plots Within plots 1 97.68 1.09 1.1$ 7 89.87 24.95 53.9$ 171 3.60 45.0$ F (.05; df=1,7) = 5.59 F (.05; df=7,171) =2.07 Transect Means +/- SE (n) = Brysh.-bea.Ten BA41 80 +/- 25 (20) BA42 145 +/- 44 (20) BA45 125 +/- 30 (20) BA46 105 +/- 25 (20) BA43 BA44 BA47 BA48 BA49 Control 65 +/- 15 (20) 700 +/- 74 (20) 385 +/- 75 (20) 90 +/- 20 (20) 70 +/- 21 (20) Conclusion: No difference In pellet-group densities between brush-beaten and control areas. See text for discussion. h£ C7> U 'l/oN r- T3 CO Oi r~- en Z3 E II c >,cr> ai .a E Q. .c ao o f» a a; i. > -Q ai Ol -a 0) +J o CO ■Q M- o o <=. , u -Q o 3 -a OJ OJ *J c ITS <"0 OJ u u u -a -a ai c c a. H2 QHwnsNoa HiMOcjg ivonnv iN3ayno jo iN3oy3d PINYON-JUNIPER HABITAT 90-« 70-i 60 30-i ^1977-78 +0^ (p re-development) \@ 26 27 19 @ ^6) SAMPLING LOCATIONS FIG. 2.5.1.1-4 Percent utilization of bitterbrush by mule deer in pinyon-juniper habitat. Years are indicated by numerals: 8=1977-78, 9=1978-79, 0=1979-80, etc. Circled sampling locations indicate locations close to development activities. TABLE 2.5.1 .1-3 Browse production and utilization, 1981-82. A B C PRODUCTION Length of shoots UTILIZATION length of i lew remaining In In percent shoots In fal I (mm) spring (mm) C = A=B_x-|gQ Transect Mean +/- SE (n)* Mean +/- SE (n) A CHAINED RANGELAND: BA17 99 +/- 12.6 (10) 13 +/- 2.9 (10) 87 BA18 93 +/- 9.3 (10) 18 +/- 3.7 (10) 81 BA25 71 +/- 10.1 (10) • 1 1 +/- 2.4 (10) 85 BA01 111 +/- 15.3 (10) 18 +/- 3.1 (10) 84 BA04 172 +/- 30.8 (10) 27 +/- 5.3 (10) 84 BA06 75 +/- 9.4 (10) 12+/- 1 .8 (10) 84 BA09 82 +/- 8.5 (10) 22 +/- 2.8 (10) 73 BA30 102 +/- 6.5 (10) 13 +/- 2.1 (15) 87 BA31 100 +/- 7.9 (15) 13 +/- 1.9 (15) 87 BA32 152 +/- 13.3 (15) 22 +/- 2.3 (15) 86 BA20 103 +/- 6.4 (10) 12 +/- 2.2 (10) 88 BA21 82 +/- 11.1 (10) 31 +/-11.0 (10) 62 BA23 144 +/- 24.9 (10) 23 +/- 5.2 (10) 84 PINYON- JUNIPER WOODLAND: BA19 86 +/- 10.8 (10) 11 +/- 2.3 (10) 87 BA26 75 +/- 6.7 (10) 9 +/- 3.0 (10) 88 BA27 85 +/- 5.4 (10) 16 +/- 3.7 (10) 81 BA16 87 +/- 6.3 (10) 15 +/- 1.6 (10) 83 BA22 97 +/- 9.7 (10) 18 +/- 4.4 (10) 81 BA24 71 +/- 7.7 (10) 21 +/- 2.9 (10) 70 n = number of shrubs sampled. Dotted lines and solid lines are again used to facilitate inspection for disturbance effects. It can be readily seen upon examination of Figures 2.5.1.1-3 and -4 that no suspiciously low values indicative of important impacts are present. What is evident, however, is a rather uniform intensity of browsing over both the chained rangeland and pinyon-juniper habitats. This is somewhat in contrast to pellet-group count results (Figures 2.5.1.1-1 and -2), where some locations tend each year to be more heavily used by deer than others. Sagebrush ocular estimate data are presented in Tables 2.5.1.1-4 and -5. Utilization in the high use category seems to be declining. Table 2.5.1.1-6 presents the results of the Chi-Square Test on sagebrush estimates. The null hypothesis was rejected in the majority of the cases, indicating the high variability between the years of data. 2.5.1.1.3 Migrational Patterns and Phenology Documentation of mule deer phenology and distributional patterns along Piceance Creek as determined by road counts are presented in Table 2.5.1.1-7 and Figure 2.5.1.1-5. The high count in the fall was 306 deer while the spring count was 809 deer. Comparisons of these results with previous years' findings, particularly of meadows adjacent to Tract C-b, suggest no displacements of deer due to development activities. 2.5.1.1.4 Road Kill Roadkill data are presented in Table 2.5.1.1-8. Figure 2.5.1.1-6 gives the breakdown of roadkills by mile. The deer roadkill data were analyzed using Chi-Square Test which is presented in Table 2.5.1.1-9. The test results indicate that the roadkill data are highly variable. As in previous years, the breakdown of class is similar. Does were the most killed, followed by fawns and then bucks as shown on Table 2.5.1.1-10. 2.5.1 .1.5 Natural Mortality Deer mortality, as estimated by spring counts of carcasses at permanent study sites, was very low during the winter of 1981-82. Only two carcasses were found (Table 2.5.1.1-11). It is assumed that the low mortality relates to a compaVatively mild winter, healthy herd, and good range condition. 2.5.1.1.6 Age-Class Composition Survival rate of fawns entering into the winter was 81.8 fawns per 100 adults (see Table 2.5.1.1-12). The small sample size may have biased the results. However, the high spring survival rate of 61.1 fawns per 100 adults seems to indicate that a large number of fawns were present at winter's start. This is the highest fawn survival estimate recorded since 1978. TABLE 2.5.1.1-4 SAGEBRUSH OCULAR ESTIMATED - SUMMER 1982 CHAINED P-J HABITAT Sample Growth Form Ut i 1 ization ransect Size Paces Young Mature Decadent Low Medium High Density 01 50 3 14 36 _ 49 1 . 4-2-0-2-2 = 14 04 50 3 5 44 - 49 1 -• 6-7-7-5-5 = 30 07 50 3 14 35 1 45 5 - 7-11-13-4-3 = 38 09 50 3 9 38 3 40 10 - 11-6-13-7-5 = 42 17 50 3 10 40 - 50 - - 13-2-2-4-3 = 24 18 50 3 11 38 1 37 12 1 1-10-5-11-3 = 30 20 50 3 16 34 - 32 18 - 3-3-7-5-3 = 21 21 50 3 5 45 - 44 6 - 7-9-8-0-5 = 31 23 50 3 14 36 - 36 14 - 5-4-5-6-2 = 22 25 50 3 5 43 2 40 10 - 7-7-5-4-2 = 25 30 50 3 6 44 - 37 13 - 3-1-3-5-2 = 14 31 50 3 9 41 - 34 15 1 3-4-7-5-9 = 23 32 50 3 13 36 1 40 9 1 1-5-3-7-3 = 19 OTAL 550 - 132 510 8 533 114 3 338 ERCENT 20.3 78.5 1.2 82.0 17.5 0.9 PINYON JUNIPER HABITAT Sample Growth Form Ut '1 ization ransect Size Paces Young Mature Decadent Low Medium High Density 10 25 3 21 4 12 11 2 1-2-0 = 3 11 25 3 1 16 8 9 15 1 4-1-1 = 6 12 25 3 - 19 6 10 10 5 1-2-4 = 7 13 25 3 - 25 - 4 15 6 4-1-5 = 10 14 25 3 - 16 9 8 13 4 5-1-3 = 9 15 25 3 - 19 6 8 13 4 4-4-0 = 8 16 25 3 - 18 7 14 11 - 4-1-2 = 7 19 25 3 - 14 11 20 5 - 1-3-1 = 5 22 25 3 - 18 7 22 3 - 0-1-1 = 2 24 25 3 1 21 3 13 11 1 2-1-2 = 5 26 50 3 - 25 25 28 17 5 2-4-1-1-1 = 9 27 50 3 2 34 14 25 23 2 1-0-3-1-3 = 8 OTAL 350 - 4 246 100 173 147 30 79 ERCENT 1.1 70.3 28.6 49.4 42.0 8.6 TABLE 2.5.1 .1-5 SAGEBRUSH OCULAR ESTIMATE 1973 - 1982 CHAINED PINYON JUNIPER HABITAT Growth Form Util ization Shrub Year Young Mature Decadent Low Medium High Density 1982 20.3 78.5 1.2 82.0 17.5 0.5 338 1981 28.8 68.6 2.6 64.9 32.0 3.1 259 1980 19.5 73.3 6.2 54.0 40.0 6.0 339 1978 7.2 88.0 4.8 41.9 39.3 13.8 309 PINYON JUNIPER HABITAT Year Young Mature Decadent Low Medium High Density 1982 1.1 70.3 28.6 49.4 42.0 8.6 79 1981 1.4 76.2 22.2 45.9 40.0 14.1 97 1980 2.3 52.4 45.3 17.7 38.7 43.6 98 1978 0 48.6 51.4 5.8 40.4 53.8 88 Sagebrush plants/acre = Number of shrubs counted X Basal Area Factor Number of sample points Basal Area Factor 40 D:26 TABLE 2.5.1.1-6 Comparisons of Sagebrush Ocular Estimates (1978-1982) Using Chi -Square Test Ho: There are no differences between year to year sagebrush ocular estimates. Ha: There are differences between year to year sagebrush ocular estimates. CHAINED PINYON - JUNIPER HABITAT Category Young 12.65 Mature 2.69 Decadent 4.03 Low 14.33 Med i urn 10.17 High 27.84 Density 13.56 Null Hypothesis (X2 Q Q5 3=7.815) Reject Accept Accept Reject Reject Reject Reject PINYON - JUNIPER HABITAT Category Young 3.45 Mature 8.76 Decadent 15.35 Low 45.98 Med i urn 0.08 High 48.70 Density 2.62 Null Hypothesis (X2 Q q5 3=7.815) Accept Reject Reject Reject Accept Reject Accept D:26 TABLE 2.5.1.1-7 OEEk KOAD COOiMT JUNE I9tt2 - DECEM6EK 19d2 SEP OCT 0£C 29 b 13 20 15 24 MILEb BMUl) bl 27 bl tb 9 BMOl 4 1 omoc: 5 9 b bM03 b b dMU4 3 1 dMOb 1 2 dMOb 3 dMU 7 4 bMOd 2 BrtOV 2b 9 2b bMiU 1 4d fcMll 21 4 bMl^ 2d BM13 3 dMl4 2 bMlb U bMlb 10 47 BM17 63 2 bMlb b2 ■»•» bM19 7 40 3 Bm20 12 34 dM21 4 14 dM22 44 1 dM23 3 aM^4 5 3 7 dMcib 1 dM2b 3 drt^7 dM2d 3 btf2 9 4 bM3i 4 bM3^ d*33 tiM34 bMjb 3 BMJb bMJ7 4 b^ibd 9 bM39 7 TOTAL 1 69 ** ** 69 97 III- ^* >* — - HUNTER CREEK STEWART ROCK GULCH SCHOOL FIG. 2.5.1 .1-5 Summary of deer counts for 1981-82. Heights of bars are means; r of road counts for the period. TABLE 2.5.1.1-8 DEER ROAD KILL JUNE 1982 - DECEMBER 1982 SEP OCT DEC 29 to 13 20 15 dd 29 MILES 11 1 19 1 2* J* 1 39 1 TOTAL paLLL)j jaaQ j.o aaquin^ TABLE 2.5.1.1-9 Deer Roadki 1 1 data analyzed using Chi-Square Test Ho: Deer roadki 11 data does not vary from year to year. Ha: Deer roadki 11 data is variable from year to year. Class Xf Null Hypothesis (x2 Q5 4=9.488) Does 61.46 Reject Fawns 45.1 Reject Bucks 9.0 Accept Unknown 3.0 Accept Total Kill 80.94 Reject D:26 TABLE 2.5.1 .1-10 Piceance Creek Road Kill (Piceance Creek Road from Mile 0 thru Mile 41) Date noes Fawns Bucks Unknown TOTAL Male Female No. % No. % No. % No. % 9-81 to 5-82 30 56 3 6 12 22 6 12 3 54 9-80 to 5-81 12 43 3 11 6 22 2 7 5 28 9-79 to 5-80 40 41 22 22 26 27 3 3 5 96 9-78 to 5-79 80 61 13 10 27 21 11 8 0 131 9-77 to 5-78 40 41 28 29 22 22 8 8 2 100* * Total road kill was 125 deer. This figure was derived from combining HOW data with C-b data. TABLE 2 .5. 1.1-11 Results of deer mortal Ity studies. Year Samp I I ng Location No. of carcasses found Hectares samp led (acres) Carcasses per hectare ( acre) 1974-75 Lateral draws 11 7.25 (18) 1975-76 Lateral draws 8 7.25 (18) 1976-77 Interim monitoring period - No sampling 1.5 (0.6) 1977-78 Sagebrush lateral draw 25 70.5 (174) 0.4 (0.1) 1978-79 Sagebrush- lateral draw 34 70.5 (174) 1979-80 Sagebrush- lateral draw 60 70.5 (174) 0.9 (0.3) 1980-81 Sagebrush- lateral draw 70.5 (174) 1981-82 Sagebrush- lateral draw 70.5 (174) 0.03 (0.01) TABLE 2.5.1.1-12 Age Class Composition of Mule Deer Wintering Near Tract C-b. Fawns/ Bucks/ Fawns/ Date Fawns Does Bucks Adults 100 Does 100 Does 100 Adults 1977 Nov. 15-23 85 107 28 135 79.4 26.2 63.0 1978 Apr. 4-7 68 104 65.0 1978 Nov. 13-27 151 159 35 194 95.0 22.0 77.8 1979 Apr. 20-26 41 343 12.0 1979 Nov. 27- Dec. 7 46 62 8 70 74.1 12.9 65.7 1980 Apr. 21-24 26 375 6.9 1980 November No Count 1981 Apr. 25 24 68 35.2 1981 Nov. 30- Dec. 4 27 31 2 33 87.1 6.5 81.8 1982 April 13-14 204 334 61.1 1 It- -> i 2.5.1.1.7 Interrelationships of Mule Deer Studies Two topics will be considered in the following discussion: 1) a comparison of the variability found in estimates of deer pellet-group densities and the three browse measurements—percent utilization, hedging, and production; and 2) a preliminary examination of multivariate approaches to interpretation that incorporate both the pellet-group and the browse measurements. Of central importance to monitoring is the ability to detect important changes, and to do so with some degree of statistical confidence. Consequently, it is desirable to single out indicator variables that have relatively little within-group variability, or error variance. Differences between groups (between areas or between time periods) can be more readily detected if within-group differences are small. A convenient way of comparing the amount of variability amoung different measurements is by comparing coefficients of variation, CV, (where CV = SD/X, expressed as a percent). The CV standardizes different scales of measurement permitting direct comparisons of variability regardless of the measurement units used. The bigger the CV, the greater the variability. Table 2.5.1.1-13 shows coefficients of variation for four measurements: pellet-group counts, percent utilization of bitterbrush, hedging of bitterbrush, and bitterbrush production. The CV's for the browse measurements were obtained from bitterbrush shrubs within or near the same quadrats that were used for pellet-group counts. All measurements were obtained this past year. It is readily apparent upon examination of the table that percent utilization is least variable of all four measurements. Pellet-group counts are the most variable. It should also be mentioned that pellet-group counts are based on n = 20 (20 quadrats per transect), whereas browse measurements are based on n = 10 (10 shrubs per transect). Thus, pellet-group data would have even higher CVs if sample sizes were halved. These findings suggest that percent utilization is the single best variable to use for detecting differences in deer numbers. However, as discussed below, analyzing all available data is nonetheless considered the best procedure. Optimizing time and effort devoted to sampling shrubs were evaluated during the early stages of the monitoring program, in 1975-76. It seems worthwhile to reevaluate sampling efficiency occasionally, however, because of the time required to conduct the shrub field studies. This is done below by an examination of the distribution of variance encountered over the heirarchial levels of the cluster sampling design. Measurements are current annual shoot growth of bitterbrush obtained this past year (i.e., production estimates of 1982). 3-LEVEL NESTED AMOVA: Source of Variation Components of Variance OF Between chained and 5.6% 1 pinyon-juniper habitat Among transects 2.6% 8 Among shrubs 23. n% 90 Among shoots 68.8% 900 III- 3 c TABLE 2.5.1.1-13 A comparison of the relatl ve varlab i I Ity among pel let- group1 and bitterbrush2 measurements. COEFFICIENTS OF VARIATION (=SD/X x 100) Pel let-group Percent counts utilization Hedglng3 Production1* CHAINED RANGELAND: BA17 BA18 BA25 BA01 BA06 BA09 BA30 BA31 BA32 BA20 BA21 BA23 Mean: 91.6 6.9 71.8 40.1 68.5 11.6 64.8 31.5 55.8 16.9 70.1 45.3 56.1 12.6 54.3 43.6 146.5 10.4 49.7 39.8 189.2 21.4 41.0 32.5 90.3 6.4 62.8 12.9 55.5 6.7 58.3 28.1 50.6 9.2 41.6 40.1 61.1 7.1 59.8 19.6 66.4 10.9 70.4 43.0 91.0 3.8 71.8 54.8 85.2 10.3 64.9 35.9 PINYON-JUNIPER: BA19 BA26 BA27 BA16 BA22 BA24 93.5 11.1 69.0 39.5 115.7 15.0 103.0 28.4 105.8 14.5 73.3 20.2 107.5 10.7 31.9 23.0 82.7 13.3 77.3 31.5 141.2 23.8 43.0 34.3 Mean: 107.7 14.7 29.5 1 n = 20, 20 quadrats per transect 2 n = 10, 10 shrubs per transect 3 length of current annual growth after winter browsing k length of current annual growth It is evident that shoot measurements are most variable (accounting for 68.8 percent of the total variance). Shrub-to-shrub variability accounts for 23 percent. Relatively little variability occurs among transects. The difference between habitats, although rather small, is statistically significant (F=6.01, P=.04), the chained habitat being the most productive. Since the greatest variation is among shoots there is some argument for increasing the number of shoots measured on each shrub, but this is not recommended because of the additional labor required for these measurements. Although browse measurements are not as variable as pellet-group counts (on Tract C-b at least), pellet-group counts require comparatively little effort and thereby permit more area to be sampled given the same amount of time. Furthermore, both data sets provide information on mule deer abundance and distribution, and consequently, both should be considered valuable in themselves as separate indicator variables. The lack of strong within-year correlations between pellet-group counts and percent utilization was pointed out in last year's report. The correlation this past year was again low (r=0.01). These results are interpreted as meaning only that at the spatial scale of this study (specifically, the transect size to habitat patch size relationship) the two data sets are not in agreement (browsing and defacation do not necessarily occur at the same spot). This weak correlation might be an advantage, however, in a multivariate statistical approach, at least for certain combinations of variables. One exploratory examination of the predictive power of combining variables was undertaken this past year. Using percent utilization as the dependent variable, pellet-group data and bitterbrush production data were used together as independent variables in a multiple regression model to see if both, in linear combination, would better explain the variance associated with percent utilization than either variable considered alone. But the multiple correlation coefficient was very low (r=0.02). Thus, there was almost no increase in predictive power with this combination of variables. Another possibility, however, would be to combine pellet-group and percent utilization data in a multivariate analysis of variance (MANOVA) model. This will be pursued in the future particularly in situations where mitigation or impact areas are to be compared with control areas. is ii ><2 \1 KJ Interim Monitoring. 2.5.1.2 Medium-sized Mammals 2.5.1.2.1 Coyote Scent Post Surveys These surveys were discontinued during 2.5.1.2.2 Lagomorph Abundance Lagomorph pellet census is used to estimate lagomorph abundance. The 39 transects established for deer pellet studies are also used to collect lagomorph pellet data. Each transect consists of 20 - 0.001 acre plots (see Figure 2.5-1 for locations of transects). Transects are located in chained-rangel and, pinyon-juniper woodland and brush-beaten sage areas. Results of the summer 1982 pellet group census for both cottontails and jackrabbits are shown in Table 2.5.1.2-1. A preliminary examination of cottontail population trends was performed this year by reviewing the data available since 1978-79. Prior to this date, methods were somewhat different and results are not valid for comparisons. A summary of cottontail results since 1978-79 is shown in Table 2.5.1.2-2. As can be seen upon examination of the table no definite trends are evident for the 4-year period. The low values for the brush-beaten sagebrush plots, however, suggest real differences between these treatment -control sites. Control plots in unmodified sagebrush have considerably higher values for the past two years. Differences for both 1980-81 and 1981-82 are significant (t=2.46, df=7, P=0.04; and t=2.65, df=7, P=0.03, respectively). The effects of brush-beating on cottontail populations will continue to be evaluated in future years. Presently it seems premature to attempt definitive conclusions regarding the seemingly negative effects of brush-beating on cottontail populations. TABLE 2.5.1.2-1 Relative abundance of cottontails and jackrabbfts, 1981-82. Each transect consists of twenty 0.001 acre plots. NUMBER OF PLOTS WITH LAGOMORPH DROPPINGS Cottontails Jackrabblts CHAINED RANGELAND: BA01 4 0 BA02 5 0 BA03 9 0 BA04 5 0 BA05 6 0 BA06 15 0 BA07 7 0 BA08 10 0 BA09 10 0 BA1 7 11 0 BA18 0 0 BA20 0 0 BA21 8 0 BA23 3 0 BA25 13 0 BA30 10 0 BA31 6 0 BA32 8 0 PINYON-JUNIPER: BA1 0 10 0 BA1 1 9 0 BA12 13 0 BA13 19 0 BAM 6 0 BA1 5 4 0 BA1 6 8 0 BA19 12 3 BA22 8 0 BA24 7 0 BA26 18 0 BA27 1 5 0 BRUSH-BEATEN SAGE: BA41 1 0 BA42 2 0 BA43 1 0 0 BA44 7 0 BA45 0 0 BA46 1 0 BA47 0 0 BA48 1 4 0 BA49 1 5 0 TABLE 2.5.1.2-2 Summary of results of cottontail trends. Data shown are means (number of quadrats with cottontail droppings present/total number of quadrats) +/~ SE (n); n = number of transects (which consist of 20, 0.001 acre, quadrats). Chained Pinyon- Brush-beaten Sagebrush Year range I and juniper sagebrush control 1978-79 8+/-1.2 (18) 11+/-1.6U2) 1979-80 12+/ -0.9 (15) 11+/-1.3 (12) 1980-81 9+/-0.7 (18) 13+/-0.8 (12) 3+/-0.9 (4) 12+/-3.1 (5) 1981-82 7+/-1.0 (18) 11+/-1.4 (12) 1+/-0.4 (4) 9+/-2.7 (5) 2.5.1.3 Small Mammals Objectives of small mammal studies during 1982 were: 1) to evaluate the spatial variability of small mammal populations, and from these findings predict the magnitude of a population decline needed for detection; and 2) to evaluate certain habitat features within the chained rangeland habitat as predictors of small mammal abundance. 2.5.1.3.1 Experimental Design Methods for evaluating spatial variability were as follows: Ten locations were randomly chosen, each in a different but contiguous square-mile section. All sampling occurred in chained rangeland habitat and was restricted to ridge tops and adjacent convex slopes; valleys were avoided because of the different vegetation type. Four transects of livetraps were positioned at each location the first day using a systematic random design (the first location of regularly spaced transects was a random choice.) Transects were parallel, 1 Dm apart, and consisted of ten traps spaced at 10m intervals. Each set of four transects was moved ahead 10m each day for six days. Each location, therefore, received a 240 trap-night effort (or n=24, since each transect of ten traps represents one sample). Methods for evaluating habitat features and their importance to small mammals were as follows: At all 240 transects (24 per location x 10 locations) measurements were obtained on eight characteristics that were considered likely to be important small mammal habitat components. These are listed below along with the measurement scale used. Habitat Features Amount of deadfall (large limbs and stumps) Amount of loose rock (rocks > 6 inches) Amount of grass-forb cover Cover by sagebrush Cover by bitterbrush Cover by conifer Aspect: east facing Aspect: west facing Measurement Scale - 5 - 5 - 5 - 5 - 5 - 5 ast West Measurements were made by one individual. All measurements pertain to a 1000m2 area (the transect length times 5m to either side of transect). 2.5.1.3.2 Method of Analysis A 2-level nested analysis of variance (ANOVA) and a least significant difference (LSD) test were used for evaluating spatial variability and predicting the magnitude of a population decline needed for detection. A multiple regression model was used to evaluate habitat features as predictions of small mammal abundance. 2.5.1.3.3 Discussion and Results Two species were captured frequently enough to permit analysis of spatial variability, the deer mouse and least chipmunk. ANOVA results and calculations of LSD for the deer mouse data are shown in Table 2.5.1.3-1. A very low percent of the total variance occurred among locations and among days for both species (0.1% and 4.6% for deer mice, and 1.2% and 8.5% for least chipmunks, respectively), indicating that both deer mice and least chipmunks were about equally abundant throughout the habitat and that day-to-day differences in activity patterns were minimal. For both species over 90% of the variance occurred among transects. To predict the change in abundance needed for detection, a hypothetical sampling device was considered in which an identical trapping effort took place in a nearby impact area of the same habitat type. An LSD was calculated (Table 2.5.1.3-1) to find the least significant difference necessary for recognizing the two areas (impact area and control area) as being different in abundance levels. Based on this approach it was found that an impact suppressing deer mice and least chipmunk populations by 2.3% and 7.4% respectively would be detected at the 95% level. Capture data obtained during this study are shown in Table 2.5.1.3-2. To evaluate the eight selected habitat features as predictors of small mammal abundance, deer mice and least chipmunk capture results were used as dependent variables in separate multiple regression analyses. Results demonstrated that none of the habitat features measured were correlated with capture frequencies (Table 2.5.1.3-3 and -4). Furthermore, standardized coefficients (beta weights) and the overall measure of association, the coefficient of determination (R?), suggest that there is no predictive power using the combination of habitat variables chosen. These results are probably a reflection of the homogeneity of the habitat stratum within which sampling occurred. There simply is not much range of variation for any of the eight variables. It is likely, for example, that deadfall and loose rock would have been singled out as important if a number of the sampling locations had been in areas totally devoid of these habitat features. TABLE 2.5.1.3-1 Evaluation of spatial and temporal variation In a deer mouse population. Calculations below the ANOVA table Illustrate a means of approximating the magnitude of a hypothetical impact required for detection based on these results. TWO-LEVEL NESTED ANALYSIS OF VARIANCE: Source of Variance Variation DF MS F Components Among Locations 9 1.465 1.05 0.003 (0.1$) Among Days 50 1.400 0.80 0.089 (4.6$) Error 180 1.756 (95.3$) F (.05), df=9,50 = 2.07 F (.05), df=50,180 = 1.42 Grand Mean of control area =2.11 (the mean number of captures per location, pooled for 10 locations; capture success, therefore = 21.1$). LSD =t, where a(df)/ 2 (location variance/n) LSD = Least Significant Difference (Sokal 4 Rohlf 1981), a = .05, the selected probability level, df = degrees of freedom (based on 480 transects, 240 in both control and hypothetical Impact areas), n =10 locations, the sample size In control and Impact areas. 1.965 2 (.003)/10 = .048 Therefore, If a Grand Mean from a hypothetical Impact area (with the same variance) lies outside the range of 2.11 +/- 0.048 (e.g., a population decline of 2.3$) It would be judged significantly different from the control area Grand Mean at the 95$ level. 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I ! i IS i i | 1 1 fvj cvj J) rvj SEE s~i * 1 co L.h -*©r~ omo r-o tr | i S3 S2g oojoo* s T 1 * i « | 2 IS * c NO or- 1 2 CD -, f- „, ». ,« e\j r. m o km ssa KSS 5KK J,,!,,, K,ES o o SS" o- o o ..1.1.. : •roj-iooo, oooo -.--• o O m CD ■ ] -J » < x £ SS^Ss 1 1 ill- loo rn ij ^ ) I ~° o o o o i>- c "■ ggK i MO»|OM«|«.4a *■£■«■ 1 «n-J,n^J«.-JowJ,oow n i | SI I ^ S2S ■f e««. **,: - T *5 i : • I I i; [I- 1*0 .1 „, o~*. es„ cxviomo sr *-.- *_« O O -1 m-.o> , 1 1 J i s SS" oo * ff«IO rsio cvi J J... m mi o 2 o o- -"« K" """a 52~ in = n si' CO - SSS «o i .«. I I U 11 1 §i §i§ 1 : Ilia III- 19d OroCMOOOO-O-O.O-Om !5| I i:s II 15 ! ' J I I I i ! j i ;$Z*T 85Jg.Ja 1 2" Is lis I ' I ili ^1 ' IS 1 ! c i s i \l s°°s -S «,^« « «>0- O c n H ... m 1* IS i £§£ g - ^ o« -CVJW oo o sss "S" M3 §S3 s ~ • j-o ' r => a < J I I I r i i ! ill- 19J The green algae (Chlorophyta) increased in importance in mid-summer, peaked in the July 29 samples and accounted for in to 23% of the total mean periphyton density over all sample periods. The increased importance of green algae in the summer samples was due primarily to a growth pulse of Stigeoclonium tenue. The mean density values for the three Piceance Creek locations are listed for each sampling date in Table 2.5.2-15. Density values ranged from 155 algal units/mm2 (Hunter Station-November 3 sample) to 20,452 algal units/mm2 (Middle Station-June 1 sample) and evidenced both spatial and temporal variations. The highest density for Stewart Station occurred in September while the highest densities for Middle and Hunter Station were in June. The periphyton densities at Hunter Station were reduced in the last three samples by the effects of flooding that destroyed the July 29 sample and deposited 2-4 feet of silt at the sample station. This silt persisted through the November sampling period and comprised almost 90% of the substrate (as compared to only 40% before flooding). The dominant members of the periphton community at Stewart Station in 1982 are presented in Table 2.5.2-16 along with quantitative results from previous years. Navicula viridula var. avenacea was a dominant taxa throughout the 1982 sampling year. Achnanthes minutissima, Rhoicospheria curvata, Nitzschia dissipata, Nitzschia frustulum, Gonphonema olivaceum, were also abundant while other Nitzschia and Navicula species varied seasonally. The green algae Stigeoclonium tenue occurred as a dominant on July 29; this can be attributed to its growth preference for warmer water temperatures. The periphyton density at Stewart Station in 1982 increased from a spring minimum of 3349 units/mm2 to a high density of 13275 units/mm^ on September 2 and decreased again toward fall. The dominant taxa observed at Middle Station in 1982 are presented in Table 2.5.2-17 with the quantitative results from previous sampling years. In 1982, Middle Station showed a periphyton assemblage and seasonal variation similar to that of Stewart Station. Periphyton density in spring was much higher than at Stewart Station (20,452 units/mm?) and showed a somewhat lower summer density peak on September 2 (8507 units/mm2). The dominant taxa observed at Hunter in 1982 along with the quantitative results from previous sampling years are presented in Table 2.5.2-18. In spring and early summer, 1982, the periphyton assemblages at Hunter Station were similar to those at the other sampling stations. The periphyton density was high on the first two sampling periods (14,563 and 13,001 units/mm2) with spring values similar to that at Hunter Station and early summer values higher than at the two other stations. For the summer through fall samples the periphyton community at Hunter Station was seriously effected by the late July flash flood and the accompanying scouring and silt deposition. The dominant taxa in the periphyton after the flood consisted of the early colonizers of artificial substrates such as Achnanthes species and Cocconeis species. (Cholnoky 1968). By November 3, the periphyton assemblage was similar to that found at the other stations but densities were still much lower. TABLE 2.5.2-15 MEAN DENSITIES (units/mm2) OF PERIPHYTON SAMPLES COLLECTED FROM PICEANCE CREEK DURING 1982 Sample Date Stewart Station Middle Station Hunter Station June 1 3349 20452 14563 June 30 7851 3190 13001 July 29 6678 2980 y September 2 13275 8507 1051 October 4 8707 3950 933 November 3 3731 4803 155 if Samples destroyed by flash flood. TABLE 2.5.2-16 DOMINANT PERIPHYTON SPECIES [>5% mean relative abundance) OCCURRING AT STEWART STATI0¥, FROM 1978 THROUGH 1982 (values rounded to the nearest percent) MEAN RELAT I V E ABUNDANCE {%) SPECIES 1978 1979 1980 1981 1982 LATE MAY - EARLY JUNE Achnanthes minutlssima +!/ Navicula cryptocephala var. veneta 13 N. secre'ta var. apiculata 12 TT. tri punctata var. schTzbmoides 6 TT. viridula var. avenacea + ¥. spp. 8 TTitzshia dissipata N. palea' 7 TT. "spp7~ 27 ~S"urire11a angustata + S. ovata~ 5 unidentified pennate diatoms 5 42 2/ 60 LATE JUNE - EARLY JULY Achnanthes minutissina Fragilaria vaucheriae Gomphonema olivaceum G. parvuTum TTavicula cryptocephala var. veneta N. secre'ta var. apiculata "FT. vi n'dula TT. vi ridula' var. avenacea ¥itzschia aciculans N. dissipata TT. fonticoTa" TT. frustulum TT. palea TT. paleacea TT. spp. TEhoicosphenia curvata Suri rel la ovata Synedra illna yar. oxyrhynchus 25 42 13 + 10 10 6 + - + + 6 + + + 9 - - - - + 5 + - 7 - + - 44 28 - 28 - - 28 + + _ + *4/ * + 6 - 7 - + - - 16 + - 7 + + ill- c ^>r- TABLE 2.5.2-16 (Contd) MEAN RELATIVE ABUNDANCE ( v) SPECIES 1978 1979 1980 1981 1982 LATE JULY - EARLY AUGUST Achnanthes lanceolata 9 14 + _ _ A. 1. var. Hubia 41 + + + + A. minutissTma 35 29 6 16 + Cocconeis placentula - . + 13 _ C. placentula var. euqlypta + 34 - - - Z. placentula var. lineata - * * - 5 TJavicula secreta var. apiculata + - 13 - + N. viridula - - 25 + _ N. viridula var. avenacea + 10 - - 12 Nitzshia dissipata - _ 20 6 + N. frustulum - - 9 15 + Rhoicosphenia curvata + - ■*- 9 18 palmella stage of Chaetophoraceae - - - 11 - PhormididiuFn sp. + - - 8 + Stigeoclonium tenue + - - - 8 LATE AUGUST - EARLY SEPTEMBER Achnanthes lanceolata + 14 + _ _ A. lanceolata var. dubia 32 - _ + + A. minutissima 13 57 42 + 5 Cocconeis pedi cuius 11 - - + + C. placentula var. euglypta 9 22 - - - G~omphonema angustatum - - + 6 - Navicula cryptocephala var. veneta + * * +■ 8 N. secreta var. apiculata 7 - + 6 + N. viridula var. avenacea + * * + 22 Nitzschia dissipata - - 28 10 14 N. frustulum . _ 5 16 11 M. holsatica - - - 6 - N". palea - - + 7 + Rhoicosphenia curvata + * * + 6 Draparnaldia sp. - - - 13 - LATE SEPTEMBER - EARLY OCTOBER Achnanthes lanceolata var. dubia + 5/ 12 14 + A. minutissima 84 25 19 24 Cocconeis pediculus 6 + + - C. placentula - 42 39 - Navicula viridula var. avenacea - * + 26 Nitzschia dissipata - 10 + 19 N. frustulum - * + 5 palmella stage of Chaetophoraceae TABLE 2.5.2-16 (Contd) MEAN RELATIVE ABUNDANCE (*,) SPECIES LATE OCTOBER - EARLY NOVEMBER + Achnanthes lanceolata 7 A. minutissima 75 79 Cocconeis pedi cuius 7 - Gomphonema angustatum - - G. olivaceum + + Navicula cryptocephala var. veneta + * N. secreta var. apiculata + + ¥. viridula var. avenacea + + Nitzschia dissipata + - N. frustulum - - N. palea - - Rhoicosphena curvata + + 1981 1982 8 + 11 * + 11 6 + + 11 13 34 9 12 15 + 7 + + 7 + + 7 + ±1 + = present at <5% mean relative abundance 1/ Peri phy ton not sampled in May 1980 If - = absent if * a Information not available at report time If Periphyton not sampled in September 1979 III- ^u<* TABLE 2.5.2-17 DOMINANT PERIPHYTON SPECIES (>S% mean relative abundance) OCCURRING AT MIDDLE STATTON, 1979 THROUGH 1982 (values rounded to the nearest percent) MEAN RELATIVE ABUNDANCE (%) SPECIES 1979 1982 LATE MAY - EARLY JUNE Achnanthes lanceolata A. minutissima TTocconeis placentula Navicula~~viridula var. NitzschTa dissipata Chaetophoraceae sp. 43 +2/ 19 5 q .3/ + 50 LATE JUNE - EARLY JULY Achnanthes lanceolata A. minutTssima TTavicula secreta var. apiculata N. viriduTa" "R". viridula' var. avenacea TTitzschia aciculans N. dissTpata ¥. frustulum TT. holsatica" ¥. palea ¥. spp. palmella staqe of Chaetophoraceae 30 9 23 + 14 + 28 26 + 10 + LATE JULY - EARLY AUGUST Achnanthes lanceolata A. lanceoTata var. dubia X. mi nuti ssima 7Torophonema anqustatum G. paryulum "FTavicula secreta var. apiculata N. viriduTir TT. vi ri du 1 a' var. avenacea ¥itzschia frustulum N. holsatica TT. palea TT. spp. "Rhoicosphena curvata Cladophora sp. Stigeoclonium tenue 6 *4/ 45 + 33 + 5 19 _ 30 + * + + 21 9 - 14 + 14 20 TABLE 2.5.2-17 (Contd) MEAN RELATIVE ABUNDANCE (%) LATE AUGUST - EARLY SEPTEMBER Achnanthes lanceolata 29 8 - - A. minutissima 42 48 5 + Cocconeis placentula - 20 + - C. placentula var. euqlypta 21 - - + Diatoma tenue var. elongatum - - 11 + Fragilaria crotonensis + - 21 - Navicula cryptocephala var. veneta • * + 8 N. heu fieri * * + 7 N. viridula var. avenacea * * + 31 Nitzschia dissipata • • + 6 N. frustulum * • + 8 Rhoicosphenia curvata • • + 9 Synedra fasciculata - - 13 + S. ulna var. oxyrhynchus - - 5 - 11 + + 59 39 9 12 14 - - 9 - • + 39 * + 9 * + 7 LATE SEPTEMBER - EARLY OCTOBER Achnanthes lanceolata var. dubi a 5/ A. mintussima "Cocconeis placentula Gomphonema angustatum NaviculaTi ridula var. avenacea N i tz schTa diss i pTta N. frustulum palmella stage of Chaetophoraceae LATE OCTOBER - EARLY NOVEMBER Achnanthes lanceolata A. mintussima Tocconeis placentula var. euglypta C. placentula yar. lineata TTymbella minuta var. sileTiaca Cymbella" mi nuta var. veneta Gomphonema olivaceum NaviculaTecreta var. apiculata N. viridula var. avenacea 5 31 16 39 TTi tzschia di ssipata * * + 13 N. frustiTlum * * + 6 FT spp. 5 - + + Tfltoicosphenia curvata + + 5 + palmella stage of Chaetophoraceae - 11 18 + 44 15 5 - 7 - _ 5 - 5 * * 7 9 5 31 TABLE 2.5.2-17 (Contd) 1/ Peri phy ton not sampled in May 1979 and 1980 ]J + = present at S% mean relative abundance) OCCURRING AT HUNTER STATION, 1977 THROUGH 1982 (values rounded to the nearest percent) MEAN RELATIVE ABUNDANCE (*,) SPECIES 1977 1978 1979 1980 1981 1982 LATE MAY - EARLY JUNE Achnanthes lanceolata var. dubi a +1/ A. mi nu tTTs i ma TTavicula secreta var. apiculata N. tri punctata var. schizonemoides N. viridula var. avenacea TT. spp. TTitzschia palea N_. spp. unidentified pennate diatoms Stigeoclonium tenue LATE JUNE - EARLY JULY + 6 + 11 .3/ 15 65 + + 5 5 6 + 26 + 7 10 + 51 + + + _ + 13 51 6 13 Achnanthes lanceolata var. dubi a zl 8 6 +• + + A. minutTTsima 8 + + + 6 GTomphonema parvulum + 23 - - + NaviculaTecreta var. apiculata + - 5 - /+ M. viriduTa" - - 58 13 TT. viridula' var. avenacea 11 48 - - 26 TTitzschia aciculans 31 - + - - N. frustulum ... 5 32 TT. holsatica 13 TT. linearis " - - ' + 9 + ¥. pITea 11 - 11 5 + ¥. TppT" 17 15 Turirella oval is + - - 13 + S. ovata + + 5 + + Tynedra ulna + - 7 Thalassiosira fluviatilis 26 + TABLE 2.5.2-18 (Contd) MEAN RELATIVE ABUNDANCE (%) SPECIES LATE JULY - EARLY AUGUST Achnanthes lanceolata A. lanceolata var. dubia A. minutissTma TTomphonema parvulum Navicula cryptocephala N. secreta var. apiculata ¥. vi ridula TT. vi ridula" var. avenacea TTitzschia dissipata N. frustiTlum TT. spp. "Khoicosphenia curvata Stigeoclonium sp. 1977 1978 1979 1980 1981 1982 5/ 6 7 + 9/ 26 + - + 38 41 + 61 + 13 + - - 7 + - + - 9 - - - 67 + + 8 - - - - 5 6 - - + 7 LATE AUGUST - EARLY SEPTEMBER Achnanthes lanceolata A. lanceolata var. dubia X. mi nutissima "Cocconeis pedi cuius C. placentula TT. placentula" var. euglypta TT. placentuTT yar. li neata Tjymbella minuta var. sileTiaca Gonphonema angustatum G. oliyaceum TTavicula vi ridula var. avenacea NitzschTa dissipata palmella stage of Chaetophoraceae 23 32 12 7 *10/ + 7 + 13 • + - 9 10 19 11 - LATE SEPTEMBER - EARLY OCTOBER Achnanthes lanceolata var. dubia A. mi nutissima TTocconeis pedi cuius C. placentula Z. placentuTa" yar. 1 i neata "Tymbella minuta var. sileTiaca Gomphonema angustatum Navicula vi ridula var. 7/ 8/ Ni tzschia avenacea n ssipata N. frustulum ^hoicosphenia curvata Stigeoclonium tenue 31 + + 16 37 18 10 - - 30 + - * _ 7 + 10 - - 10 - * + 9 + 6 11 + 9 13 * + 9 TABLE 2.5.2-18 (Contd) MEAN RELATIVE ABUNDANCE (%) SPECIES LATE OCTOBER - EARLY NOVEMBER Achnanthes lanceolata A. lanceolata var. dubia A. minutissima 1977 1978 1980 49 20 Cocconeis pedi cuius + 6 - C. placentula 15 + - C. placentula var. euglypta - 27 + C. placentula var. lineata * - * Gomphonema angustatum - - - G. olivaceum + + + Navicula cryptocephala var. veneta - + - N. secreta yar. apiculata 23 10 10 ¥. viridula var. avenacea 22 28 10 Nitzschia dissipata * - * N. frustulum - - - N. palea + - - N. spp. 12 - - "R~hoicosphenia curvata palmella stage of Chaetophoraceae 5 1/ + = present at <5% mean relative abundance 1/ Periphyton not sampled 1n May 1980 V - = absent i/ Periphyton not sampled in late June - early July 1977 21 Periphyton not sampled in late July - early Auqust 1977 0/ Periphyton not sampled in late Auqust - early September 1977 U Periphyton not sampled in late September 1977 and 1979 J*/ Sampler destroyed in 1978 21 Sampler destroyed in 1982 1°/ * = Data not available at report time 6 21 + 31 + 6 12 8 5 + Only qualitative periphyton data were obtained in 1974-1976 (C-b Annual Report of 1977). As a result, no information is available for comparison of relative abundance and dominance. Since Middle Station was initiated into the monitoring program in 1979, comparison of the three stations can only be made subsequent to 1979. The Stewart Station site was moved to its present location after the 1977 sampling season. Hence quantitative comparisons can be made for this station from 1978 to 1981, while quantitative records for Hunter Station are available from 1977-1981. Annual variations are occurring in Piceance Creek based on comparisons of 1982 periphyton samples with previous periphyton analysis. The periphyton communities in 1977-1981 samples showed temporal variations between communities dominated by Navicula species and Nitzschia species and communities dominated by Achnanthes species and Cocconeis species. In 1982, however, Navicula species dominated at all stations with the exception of the flood effected Hunter Station, with Nitzschia species and Achnanthes species occurring as co-dominant with seasonal variations. Differences in sampling techniques may have been responsible for some of the variation observed over the years. In addition, the glass slide incubation time may not have been long enough on some sampling dates or the incubation disturbed by flood or other intervention. As a result, the flora collected on these dates may have been in the phase of accumulation rather than the more stable phase of reconstruction (Hutchinson 1975). The organisms which are flat and can attach themselves directly to the substrate are usually the first to colonize glass slides. Examples include Achnanthes lanceolata. A. minutissima, Cocconeis pediculus, and C. placentula. Stalk and tube-forming diatoms occur during the reconstruction phase; Cymbel 1 a species, Gomphonema species, and Navicula viridula are examples of these organisms. Also, annual differences may have been due to a combination of environmental factors such as light (turbidity), temperature, flow rate, nutrients, and pH. Any or all of these factors may vary on an annual basis regardless of man-made perturbations. Fisher's LSD procedure (1979) was used to determine if significant differences occurred in periphyton densities at Tract C-b sampling stations between 1981 and 1982 and if differences existed among stations during each 1982 sample period. The results of this analysis of variance procedure are provided in Tables 2.5.2-19 and 2.5.2-20, respectively. In the comparison of 1981 with 1982 data, a significant difference of at least 10% was noted between all sample stations with the following exceptions: Stewart Station - June and July, Middle Station - June and August, Hunter Station - May. An evaluation of 1982 data showed a significant difference of at least 5% between all sample stations during each sample period with only one exception: there were no apparent differences in periphyton densities between Stewart and Middle Station during October. Periphyton biomass, a measure of productivity, is summarized for 1982 samples in Table 2.5.2-21. At Stewart and Hunter Stations periphyton ash-free dry weight showed similar trends to the TABLE 2.5.2-19 COMPARISON OF 1981 AND 1902 PERIPHYTON DENSITIES AT EACH SAMPLING STATION DURING EACH SAMPLING PERIOD USING FISHER'S LSD PROCEDURE (1949)1/ Month Stewart May 1% June - July - August 1% September 10% October 1% Middle Hunter 1% 5% 1% No data - 1982 1% 1% 1% 1% 1% - = No significant difference between year 10% = Difference significant at the 10% level 5% = Difference significant at the 5% level 2% = Difference significant at the 2% level 1% = Difference significant at the 1% level TABLE 2.5.2-20 COMPARISON OF PERIPHYTON DENSITIES BETWEEN EACH SAMPLING STATION DURING 1982 USING FISHER'S LSD PROCEDURE (1949)1/ Sample Station May June July Auqust September October Stewart-Middle 1% 1% 2% 1% 1% - Stewart-Hunter 1% 1% 11 1% 1% 2% Middle-Hunter 1% 1% y 1% 1% n Stewart and Middle-Hunter 5% 1% y 1% 1% i% ±1 - = No significant difference between year 10% = Difference significant at the 10% level 5% = Difference significant at the 5% level 2% = Difference significant at the 2% level 1% = Difference significant at the 1% level y Data missing for Hunter Station - July 1982 TABLE 2.5.2-21 MEAN PERIPHYTON BIOMASS (mg ash-free dry weight/cm2) FROM PICEANCE CREEK, JUNE THROUGH NOVEMBER 1982, TRACT C-b Sample Date Stewart Station Middle Station Hunter Station June 1 1.104 1.940 1.500 June 30 1.523 1.281 1.871 July 29 1.678 1.019 1/ September 2 1.473 1.416 0.132 October 4 0.835 1.024 0.213 November 3 0.596 0.650 0.038 }J Samples destroyed by flash flood periphyton densities observed at these stations. In general, biomass increased to an early or late summer high and decreased in the fall. Hunter Station has ash-free dry weight values similar to those for Stewart and Middle Stations for the first two sampling periods and much lower values for the samples collected after the late summer flood. In 1975, 1976, 1977, 1979, and 1980, biomass was usually higher at Stewart Station than at Hunter Station, but was higher at the latter station in 1978, 1981, and 1982 (only the first two sample periods are used for comparison). In 1979, biomass productivity at Middle Station was generally higher than at Hunter Station, while Stewart and Middle Stations alternated positions throughout the year. In 1980, biomass productivity at Middle Station tended to be higher than at the other two stations. However, the 1981 and 1982 biomass at Middle Station was generally higher than Stewart Station but lower than Hunter Station, except after the flood at Hunter Station. A statistical comparison of 1981 with 1982 periphyton biomass data using Fisher's LSD procedure is provided in Table 2.5.2-22; a comparison of periphyton biomass between each sampling station during 1982 is provided in Table 2.5.2-23. Periphyton biomass was generally higher at all stations during 1982 than during 1981; the exceptions are August and October samples at Hunter Station. In all comparisons except Stewart Station for July and September and Middle Station for May, the difference between the two years was significant at at least the 2% level. The comparison of biomass at different stations between 1982 showed that Stewart and Middle Station were most similar while significant differences occurred between Stewart and Hunter and between Middle and Hunter Station over almost all samples. Diversity values estimated for each sample location during each 1982 sample period are presented in Table 2.5.2-24. Diversity values are a relative measure of environmental stress on a community; they generally decrease with increased stress. Diversities for 1982 ranged from 1.26 at Hunter Station in September, following the floods, to 3.09 at Stewart Station in July. At Stewart and Middle Station the highest diversity occurred in July while at Hunter Station the highest diversity occurred in October. Because the number of taxa found in a sample can effect the range of possible diversity values, the evenness values, E, are better for comparing samples with varying numbers of species counted. Evenness at Stewart and Middle Stations were similar throughout the 1982 sampling season with the highest values occurring in July. At Hunter Station evenness values were similar to the other stations except immediately following the July flood when it was lower. Diversity values in previous sample years were similar to those found in 1982, though peak diversities occurred at different times. In 1981, diversities at Stewart, Middle and Hunter Stations were highest during fall. In 1980, diversities at Stewart and Middle Stations were highest during summer but were highest in early fall at Hunter Station. In 1979, highest values occurred during summer months, while the lowest occurred in fall. Diversity values in 1978 decreased steadily at Stewart and Hunter Stations between May and July but increased in August. Lowest values for both stations occurred in fall. The low density values recorded in 1978, 1979, 1980, and 1981 occurred mainly when Achnanthes species and Cocconeis TABLE 2.5.2-22 COMPARISON OF 1981 AND 1982 PERIPHYTON BIOMASS AT EACH SAMPLING PERIOD DURING EACH SAMPLING PERIOD USING FISHER'S LSD PROCEDURES (1949)1/ Stewart 1% 1% Z% Middle 1% II 1% 1% n 1/ . = No significant difference between year 10% = Difference significant at the 10% level 5% = Difference significant at the 5% level 2% = Difference significant at the 2% level 1% = Difference significant at the 1% level 1/ Data missing for Hunter Station - July 1982 TABLE 2.5.2-23 COMPARISON OF PERIPHYTON BIOMASS BETWEEN EACH SAMPLE STATION DURING 1982 USING FISHER'S LSD PROCEDURE (1949)1/ Sample Station May June July August September October Stewart-Middle 2% - 5% - - - Stewart-Hunter 2% - 1/ 1% 1% 2% Middle-Hunter - 10% 11 1% 5% 10% Stewart and Middle-Hunter 10% II 1% 1% 5% 1/ _ = No significant difference between year 10% = Difference significant at the 10% level 5% = Difference significant at the 5% level 2% = Difference significant at the 2% level 1% = Difference significant at the 1% level 2/ Data missing for Hunter Station - July 1982 TABLE 2.5.2-24 SHANNON-WEINER DIVERSITY (H'), MAXIMUM DIVERSITY (H'max), EVENNESS (E), AND TOTAL NUMBER OF TAXA (N) IN PERIPHYTON COLLECTED FROM PICEANCE CREEK, JUNE THROUGH NOVEMBER 1982, TRACT C-b Stewart Station "FTiSx" E W W Sample Date "TT H'max E~ June 1 1.85 3.66 0.51 39 2.17 June 30 2.78 3.64 0.76 38 2.28 July 29 3.09 4.01 0.77 55 2.95 September 2 2.77 3.85 0.72 47 2.69 October 4 2.17 3.30 0.66 27 2.42 November 3 2.27 3.71 0.61 41 2.36 Middle Station H'max 3.69 3.89 3.89 3.87 3.78 3.74 ~E W 0.59 40 0.59 49 0.76 49 0.70 48 0.64 44 0.63 42 TT 2.07 2.36 1/ 1.26 2.71 2.66 Hunter Station i — T H'max 3.58 3.69 U 3.22 3.83 3.78 0.58 36 0.64 40 1/ 1/ 0.39 25 0.71 46 0.70 44 1/ Samples destroyed by flash flood species dominated the periphyton. These genera are early colonizers of glass slides; species diversity values are usually low during the earliest stage of colonization (Hutchinson 1975). A multitude of factors such as flood, irrigation, cattle grazing, springs, and Tract C-b discharge may affect Piceance Creek aquatic systems. Since Hunter Station was so severly impacted in late July by flood, scour, and siltation, valid comparisons of periphyton composition and density are limited with respect to monitoring water quality effects of Tract C-b discharge. The periphyton diversity values for Hunter Station after the initial recovery from the floods may be useful, however, in evaluating water quality and possible Tract C-b discharge impacts. Discharge from Tract C-b development activities only affects Hunter Station; based on 1982 data before flooding occurred in late July no discernible impact to the Piceance Creek aquatic system can be attributed to Tract C-b. Any variations observed from the early baseline studies through the 1982 study seem to be attributable to agricultural impacts and natural variations. - 2.5.3 Terrestial Vegetation Studies The 1982 vegetation studies were conducted in accordance with the Approved Interim Monitoring Program for the C.P. Project. The Terrestial Vegetation Studies in 1982 consisted of sampling the community structure and composition of the Irrigation Study Plot, sampling for herbaceous production and utilization (range cages and adjacent open areas) in the chained pinyon-juniper rangeland and irrigated chained pinyon-juniper rangeland, (see Figure 2.5-1 for locations of range cages and adjacent open areas), and sampling for herbaceous biomass in the irrigation/fertilization study plots. Tables 2.5.3-1 to -ID show the results of these studies. The results of the community structure and composition sampling of the Irrigation Study Plot show a decrease in herbaceous cover in 1982, along with some minor differences in species frequency. These differences could be the result of two possible reasons: 1) Heavy utilization in the area in 1982 - the vegetation in the- area was more productive because of the irrigation in 1980 and 1981 and thus attracted more cattle, and cattle remained in the area throughout the 1982 growing season; 2) Differences related to data collection - in visual evaluation of species cover it is difficult to be consistent from year to year and even from quadrat to quadrat. The major differences in the results of the shrub sampling can be attributed to the analysis of 16 line-strip transects in 1982 rather than 20 transects analyzed in 1980 and 1981. Fifteen pairs of range cages and adjacent open areas were sampled in each of the previously mentioned vegetation types. The 1982 data showed slight reductions in both production and utilization for both areas in 1982. The amount of utilization for both areas was significant. Roth production and the amount of utilization of the irrigation area were significantly greater than that for the chained pinyon-juniper rangeland. Any possible effects which irrigation and/or fertilization from previous years might have had on herbaceous biomass in the irrigation/ fertilization study plots were completely masked by the heavy cattle utilization throughout the summer of 1982. The amount of herbaceous biomass in all plots was very low and no differences among the plots could be ascertained from the data. Table 2.5.3-1 Herb quadrat summaries for the Irrigation Study Plot. Based on data from 25 permanently located quadrats. June 1982. Values in percent. "?" indicates uncertain identification. ( + values are equal to the standard error of the mean. Species Mean Cover (%) Relative Cover {%) Range of Cover Values HERBACEOUS SPECIES Ago6QJvU glauca <0.1 0.19 0 - tzctoAjum 1.4 13.79 0 - 4 92 ChanacXtb dongioMtt ^0.1 0.12 0 -<1 12 QAJLpib acc.unu.nata. *0.1 0.42 0 - 1 8 CA.yptanX.ha. 6 pp. ^0.1 0.15 0 -<1 16 EjvLgeJion purrUZuA <0.1 *0.01 0 -<1 4 HztZA.othe.ca vttlota 0.3 2.58 0 - 2 44 KoqIoaajx. gAjaoJJUji 0.5 4.39 0 - 2 48 LappuZa A.e.domtut <0.1 40.01 0 -<1 4 QA.yzop6 hymcnoidcA 0.9 8.70 0 - 6 60 PznAtcmon caz6pUto6u6 0.3 2.43 0 - 3 28 PznAtcmon ^A-CmontLL <0.1 ^0.01 0 -<1 4 Phlox hoodit 0.3 3.20 0 - 3 32 Phlox longt^olta 0.1 0.54 0 - 1 20 Phybojujx {loAA.buJx.da <0.1 0.12 0 - otkamnuA v-d> cicUfiZonuA ^0.1 GutieAAzzAA. AcviothAae. 0.2 3.04 0.31 0.42 2.08 0 - 3 52 0 -<1 32 0 - 1 8 0 - 4 24 Sub - Total 0.5 Total Herb Cover Total Woody in Herb Layer Total Shrub Layer Cover Mosses Lichens Litter Bare soil Rock No. of Herb Species/m 2 Total No. Species/m 0.6 10.4 cO.l 0.2 68.7 20.8 3.1 Mean - S.E. 8.12 t 0.61 9.28 t 0.67 Range 1 - 14 2 - 16 0 - 4 0 - 45 0 - 60 0 - 28 ^S I— O -— - en i— i vo .— I «3" .—I ■"-I o <—> O i-il-t * "3 > V? r— O^ o a. u. :3 .a c s- c o CO in CO i — to O O T- |— CD 61 0.29 1.08 0.83 10.01 2.42 - - 14.63 62 - U.8b 22.42 1.47 39.85 - - 64.59 63 26.22 4.93 0.44 0.17 0.06 0.13 - 31.95 64 14.41 - - 19.22 9.29 - - 42.92 6$ 10.93 - 2.26 41.84 0.04 - - 55.07 66 28.62 - - 6.58 11.93 - - 47.13 67 30.66 1.24 3.28 - 0.20 - - 35.38 68 11.95 0.18 - 4.39 24.44 - - 40.96 69 0.55 0.06 - 1.52 82.60 5.66 - 90.39 70 24.55 0.02 - 2.61 26.32 - - 53.50 71 9.02 - 7.88 0.98 5.45 - - 23.33 72 - 0.11 1.34 21.63 2.53 - - 25.61 73 - 0.63 10.74 5.33 0.34 - - 17.04 74 14.59 7.59 - 3.89 8.78 - - 34.85 75 - 13.14 1.52 19.66 13.28 0.02 - 47.62 61 0.82 0.96 11.31 10.14 0.02 23.25 62 - 2.80 5.83 1.73 1.00 - 21.84 33.20 63 13.03 0.24 0.02 1.78 1.33 - - 16.40 64 4.61 - - 6.95 4.02 - - 15.58 65 2.92 - - 7.67 - 0.03 - 10.62 66 9.62 - - 9.58 13.24 0.24 - 32.68 67 - 0.05 2.06 19.17 1.34 - - 22.62 68 4.70 0.04 - 6.83 12.71 - - 24.28 69 0.31 0.25 - 3.49 45.46 - . - 49.51 70 0.84 0.07 0.16 8.29 2.34 0.06 - 11.76 71 0.84 - - 7.02 7.53 - - 15.39 72 1.58 7.78 - 0.41 4.29 - - 14.06 n - 1.68 6.35 5.09 3.13 - - 16.25 H 15.95 1.76 - 2.20 5.93 - - 25.84 75 1.91 1.00 0.83 13.89 25.70 - - 43.33 Table 2.5.3-4 Oven dry weights ( grams /in ) for range cage and adjacent open areas in the irrigated chained rangeland community type. O O "i- t— en 1 7.77 1.04 25.79 47.14 1.19 _ 82.93 2 - 0.18 4.36 56.81 2.87 - - 64.22 .3 19.44 - - 63.17 0.34 _ _ 83.45 4 9.18 - - 48.89 5.97 - - 64.04 5 2.73 - - 50.28 9.66 - - 62.67 6 1.87 0.04 20.12 33.49 1.40 - - 56.92 7 31.04 26.31 60.19 37.27 1.48 - - 156.29 a 109.68 - - 18.12 24.18 - - 151.98 9 - - - 53.39 1.37 - - 54.76 10 19.29 - - 14.25 5.13 - - 38.67 11 54.33 0.52 6.47 5.84 11.44 - - 78.60 12 - 25.13 39.39 11.29 10.96 1.80 - 88.57 13 40.90 1.16 - 18.28 0.71 - - 61.05 14 29.97 0.23 - 9.95 7.09 0.02 - 47.26 15 41.00 - - 10.46 11.58 - - 63.04 1 2.37 0.09 3.44 17.91 0.41 0.04 _ 24.26 2 - 0.03 0.06 8.89 13.05 0.02 0.43 22.48 3 1.65 - - 17.97 0.23 - - 19.85 4 4.60 - - 13.86 13.94 - 0.71 33.11 5 12.92 - 0.13 12.31 6.54 - - 31.90 6 6.19 0.45 6.76 6.32 3.28 - - 23.00 7 38.44 0.03 4.67 - 0.67 - - 43.81 8 28.33 . - 14.63 17.21 0.09 - 60.26 y — rag - - 9.84 1.38 - - 12.11 10 0.20 0.02 - 14.77 8.60 - 2.04 25.63 u 8.21 0.97 6.29 - 6.45 - - 21.92 ii _ 9.58 6.11 0.28 14.63 1.33 - 31.93 1'J 7.41 1.12 0.11 11.37 2.31 - - 22.32 14 10.59 - - 5.09 21.43 - - 37.11 lb 14.38 - - 14.61 2.69 - - 31.68 in- in Table 2.5.3-5 Mean production (grams/m^)- the standard error of the mean (S.E.), frequency, and range of observed values for clipped plots in the chained pinyon-juniper rangeland. 1982 Data. Species Mean - S.E. Sample Size Frepuency (%) Range of Values OPEN AREAS Agropyron smithii 3.81 1.31 15 80 Bromus tectorum 1.11 + 0.53 15 73 Oryzopsis hymenoides 1.02 + 0.55 15 40 Perennial grasses 7.03 + 1.31 15 100 Perennial forbs 9.21 + 3.12 15 93 Annual forbs 0.02 + 0.016 15 27 Half shrubs 1.46 + 1.46 15 7 Total Biomass 23.65 + 2.99 15 FENCED PLOTS Aqropyron smithii 11.45 + 2.97 15 73 Bromus tectorum 1.99 + 0.97 15 73 Oryzopsis hymenoides 3.38 + 1.59 15 60 Perennial grasses 9.29 + 3.01 15 93 Perennial forbs 15.17 + 5.68 15 100 Annual forbs 0.39 + 0.38 15 20 Total Biomass 41.66 + 5.07 15 III- C£L6 0-15.95 0- 7.78 0- 6.35 0.41-19.17 0-45.46 0- 0.24 0-21.84 10.62-49.51 0-30.66 0-13.14 0-22.42 0-41.84 0.06-82.60 0- 5.66 14.63-90.39 fc Table 2.5.3-6 Mean production ( g rams /m2)jf the standard error of the mean (S.E.). frequency, and range of observed values for clipped plots in the Irrigated Area. 1982 Data. Sample Range of Species Mean +_ S.E. Size Frequency (%) Values OPEN AREAS Aqropyron smithii 9.08 - 2.86 15 87 Bromus tectorum 0.82 - 0.63 15 53 Oryzopsis hymenoides 1.84 ±0.71 15 53 Perennial grasses 9.86 i i.6i 15 87 Perennial forbs 7.52 i 1.79 15 100 \) Annual forbs 0.10 - 0.09 15 27 Half shrubs 0.21 - 0.14 15 20 Total Biomass 29.42 - 2.99 15 FENCED PLOTS Aqropyron smithii 24.51 ±7.59 15 80 Bromus tectorum 3.64 - 2.32 15 53 Oryzopsis hymenoides 10.42 - 4.72 15 40 Perennial grasses 31.91 - 5.20 15 100 Perennial forbs 6.36 i 1.67 15 100 Annual I forbs 0.12 - 0.12 15 13 Total Biomass 76.96 - 8.83 15 0-38.44 0- 9.58 0- 6.76 0-17.97 0.23-21.43 0- 1.33 0- 2.04 12.11-60.26 0-109.68 0- 26.31 0- 60.19 5.84- 63.17 0.34- 24.18 0- 1.80 38.67-156.29 LO CD V 1 -i CM «3- V 1 1 CM oo *"* CM 1 i .—i oo CM r~l V ,_, 1-1 rt O V CM CM 1 LO r~' _ CTi 1 V V *"H ' 1 r-H oo ' V 1 CO 1 CO r«v V CM ' 1 **■ V ^ i «d- 00 ' V CM CM V i ^r !>. 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U_ CJ -Q C S- C O -Q 4- Z5 r— S- (O -£= DC uo to E +J o O-r- 1— CQ la 1 1.10 _ 0.05 0.41 0.02 _ _ 1.58 la 6 0.64 0.04 _ 0.29 0.22 0.26 _ 1.45 la 13 _ 0.03 0.64 0.39 0.63 0.02 _ 1.71 lb 1 - 0.02 _ 3.33 0.54 _ _ 3.89 lb 7 _ 0.32 1.26 _ 5.46 _ _ 7.04 3a '80 1 2.33 _ _ 1.68 1.00 _ _ 5.01 3a '80 9 3.34 _ _ 0.06 _ _ _ 3.40 3a '80&'81 1 _ _ _ 0.48 _ 0.02 _ 0.50 3a 80&'81 4 3.60 _ _ _ _ _ 0.31 3.91 3b 80 1 _ 0.36 _ 1.84 0.02 0.02 _ 2.24 3b 80 6 _ _ 0.63 2.40 1.91 _ _ 4.94 80&81 1 _ 0.39 _ 0.69 0.02 _ 0.45 1.55 3b 80&81 6 1.50 0.04 0.04 1.58 4a 80 1 1.84 0.67 0.10 2.61 4a 80 8 0.83 0.62 2.35 3.80 4a 80&81 1 0.32 2.39 ?.71 4a 80&81 9 0.89 n.sd 0.19 1.62 4b 80&81 2 0.59 1.04 0.05 1.68 4 b ;:-;0 8.81 8 0.40 0.17 0.38 0.44 0.02 _ 1.99 3.40 1 m- ,' Table 2.5.3-9 Regression Equations for converting fresh weight estimates to oven dry weights in the irrigation/fertilization study plots. 1982 Data. Species/ Species Group Regression Equations Correlation Coefficient Agropyron smithii y = 0.47 x - 0.07 0.93 Bromus tectorum y = 0.26 x + 0.13 0.53 Oryzopsis hymenoides y = 0.64 x - 0.06 0.97 Perennial grasses y = 0.60 x - 0.02 0.89 Perennial forbs y = 0.60 x - 0.14 0.98 Annual forbs y = 0.27 x - 0.01 1.00 Half shrubs y = 0.71 x - 0,25 0.89 ~ Table 2.5.3-10 Mean production + the standard error of the mean (S.F.), frequency, and range of observed values for quadrats in the irrigation/fertilization study plots la, lb» 3 X h g 1 2 SI 5 a. « i 42 cr S.S s ,T ^ ^ ,J „ ^ ^r 5 Is * * * « o o a o ° ° o ■g f2 2^ ° ° - c - c 13 3 ° W ° ° 1 a 13 o o O c c o ' o o c o o 5 rr < = s ° - ~ - ■ a X CO X X CO § p 5? n - r H "» n n „ (- o o u •=3 < I "g a: R £ h- c U "Z. o o o 5 2 J! c n (U t + * * 2 ° r!j £ S.s o o a * * * * * * * = |S u u u U * * * * * * + a n -i X) H S-t3 u u u r~ IM ^ LSI w 10 re fjj c „ n n n n n _ n n 3 +J g o o o £ _l o o a o o a o c o o o J, p i ,y '^ := rr -o z ,_ m ^ 2 ED Q O cc IVJ "; ■" s o X 3 a £ - j* -: ■x rs p ^ " K «- "5 ' t - "« CJ «g o 2 * 2 S - R 1 % s £ >- £ a - s - § £ *=* 3v 1 z: < ad LU !1 ■ £ < * £? Z> ~3 _J ~3 3 a, LU CO O O > o 2 o LaJ Q "-0 < <~ I ii n 2.7.2 Mine Gas Monitoring Mine gas samples for CO and methane analysis are required to be taken once every 24 hours from the exhaust air of the Venti 1 ati ion/Escape shaft. These 24-hour values were summarized into weekly averages. All values were O.D for June 8 through December 28, 1982. r t 3.0 Other Studies Data were collected for two programs for the period June, 1982 through December, 1982. These programs were Micro-environmental Studies and Traffic Load Studies. 3.1 Micro-Climate Program Introduction Locations of micro-climate stations with a BC## computer code are presented in Figure 3.1-1. Micro-climatic parameters monitored from June, 1982 - December, 1982 include the following: 1) Maximum and minimum temperature at surface and at one meter (Table 3.1-1); and 2) Totals for precipitation, snow depth and snow moisture, (Table 3.1-2 and 3.1-3, respectively). Time series plots for the micro-climate parameters are displayed on Figures 3.1-2 through 3.1-6. Snow depth and moisture statistics are shown on Table 3.1-4. Analyses of the micro-climate monitoring program will be included in the Annual Report. Scope Studies of micro-climatic parameters on the C-b Tract provide data that are useful in assessing changes in vegetation production and structure, animal populations, or animal activity patterns, and may also be correlated with changes in functional components of the C-b ecosystem that may occur as a result of shale oil development. Five micro-climatic stations are located in developmental sites and five in control sites: The following sites are monitored: MC Station Locations BC01 Chained Pinyon-Juniper Rangeland, Veg. Plot 1 BC02 Chained Pinyon-Juniper Rangeland, Veg. Plot 2 BC03 Plateau Sagebrush, Veg. Plot 3 BC04 Valley Bottom Sagebrush, Veg. Plot 4 BC05 Pinyon-Juniper Woodland, Veg. Plot 5 BC06 Pinyon-Juniper Woodland, Veg. Plot 6 BC07 Chained Pinyon-Juniper Rangeland (Animal Trapping Transect) BC08 Bunchgrass Community, South-facing Slope BC09 Valley Bottom Sagebrush, Mouth of Sorghum Gulch BC13 Mixed Mountain Shrubland, North-facing Slope Temperature readings consist of maximum and minimum readings for two-week periods. Precipitation is measured only during the growing season, March through October. Therefore, precipitation data from meteorology station AA23 are utilized for winter-month readings (November-February) for valley and pinyon-juniper microclimate stations. Snow measurements are obtained approximately from November-February. ^«8§gp fr WU70 ON SCANDARD GULCH AT ROAN PLATEAU FIGURE 3.1-1 CLIMATOLOGICAL NETWORK NEAR TRACT Hi- £60 TABLE 3.1-1 MICROCLIMATE uaTa MR SURFACE TEMPERATURES UF MAXIMUM AND MI NlMuM ;:lJ£; JUNE 1^h2 - DECEMBER 19d2 STATION YEAR bCOl 8C03 *C05 TEMP TEMP TEMP TEMP 1ONH DaY MAXIMUM MINIMUM MAXIMUM MINIMI 12 15 7.0 -l^.o 6.0 -12.0 7 14 32.0 11.0 40.0 11.0 30 22.0 10.0 4O.0 15.0 a 16 32.0 12.0 43.0 If .0 9 lb 2d . u -2.0 *^.0 7.0 30 .0 -^.0 3b. 0 2.0 10 lb lb.O -^.0 2b. 0 -3.0 11 1 17.0 -d.O 32.0 -6.0 lb b.O -lb.O 23.0 -13.0 12 1 d.O -5.0 17.0 -15.0 lb 1.0 -13.0 11.0 -12.0 6 JU 40.0 2.0 40.0 5.0 7 14 <+0.0 -1.0 39.0 2.0 30 44.0 7.0 33.0 9.0 8 lb 31.0 10.0 *0.0 7.0 9 1 36. U 6.0 3b. 0 7.0 15 3b. U -1.0 32.0 2.0 30 3o.O 1.0 23.0 2.0 10 lb 21.0 -10.0 lb.O -3.0 il 1 22. U -11.0 d3.0 -10.0 15 13.0 -lb.O 9.0 -15.0 12 1 10.0 -17.0 10. 0 -16.0 r> 3 0 32.0 2. 0 3o.O 1. J 7 14 34.0 -^.0 40.0 -1.0 JO j a • U 7.0 Js.Q 6.0 b 16 JO,U 7.0 3b. 0 6.0 9 1 35.0 h.O 3o. 0 6.0 lb 32. 'J -2*0 35.0 -1.0 3 0 31. 0 .0 So.O 2.U 10 lb 19.0 -1^.0 20.0 -^.0 11 1 17. 0 -11.0 2 <*■ • 0 -12.0 15 i 0 . 'j -18.0 15.0 -19.0 12 1 6. 0 -19.0 l^.U -20.0 : b 2 . J -16.0 j , 0 -17.0 5 3b . i -a , .j 4.2 , 0 -1.0 7 1* .3 2 . u v . 0 36. 0 i .0 JO il . 0 1 .0 <*<* . 0 J.U TABLE 3.1-1 (Contd) MICROCLIMATE JATA MR SURFACE TEMPERATURES OK MAXIMUM AND MINIMUM VALUES JUNE 1^6d - Ot.Cz.4ot.ri 1V82 SUkFaCE SURFACE TEMP TEMP TEMP TEMP STATION YEAR MONTH DAY MAXIMUM MINIMUM MAXIMUM MINIMUM 9 lb 31.0 -11.0 3o.O -1.0 3 0 2b. 0 -b.O 30.0 -1.0 10 lb 2 0.0 -lb.0 2^.0 -12.0 11 1 lb.0 -14.0 2b. 0 -If .0 lb 12.0 -2b. 0 lb.0 -lo.O 12 1 10. U -25.0 13.0 -20.0 lb tt.O -23.0 10. 0 -ld.o TABLE 3.1-2 mICHO CLIMATE o a T a JUNE iVrl2 - UECfcMriEH i^od STATION YE AW lONfrl DAY PHEC I P I T A T I ON BC05 8 lb • 95 9 1 . YcL is 1.95 JO 1.54 0 1 lb 1 1.00 15 . 7 0 6 30 .13 7 14 .20 10 is ,70 11 1 .52 .17 30 .72 16 1.50 1 .51 15 ^.oo JO 1.25 lb 2.0 0 1 . Of 15 • b4 3 0 .10 U .3<* 3 0 • oG iOTE: 300. U = T^ACE OF PHECIPITATK in- £63 i TABLE 3.1-3 lICRQCLI 1ATt DATA D£RT:-i A'JJ SNOW mq£STUH£ V A JUNE i9fc»2 - DECE""ttER l*o2 SNOW SNOvy STATION YEAR IONTm DAY DEPTH MOISTURE .0 ,0 .0 .a .0 .0 • 0 . 0 Id. 4 2, .2 £4.0 4, .0 £4.0 4, .0 la.o 5, .0 2u.o b, ,0 ld.O 2, . 0 20.8 b, .0 dC05 82 12 1 4.0 HC07 82 12 1 7.2 10.0 1, . 0 12.0 J, .0 lO.O 3, .0 10.4 1, ,4 aOO.u .0 o.O 1, . 0 10.0 1 , . 0 '-iOU • J .0 b . 0 1, .0 o.O 1, .0 NOTE: 800.0 = TRACE OF RkEC It- I Tm i I 0*n III- P r— i < E w CO 3 [II- 266 < OS 2 w u < En s p i a: < j III- 267 Pi < K P- w E- U Pi en Q E < E- o E w en W le [II- 2bb pi < Pi W u < Pi D S 1 UJ < < I in w E w en w __jr .- ^ L III- 274 < PL, s H O ._-*<-" III- 275 Ill- 276 5 gj s s Q S ■*-.-. Ill- 277 w K E- < K W P-, . E- _ S ° Q o III- 273 .,, * p < K W PU w P g s § Q < co i ~ p! 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OS '2- 1 X Q 3 i E- CO Pr3 D O en 3 I ? o < p- cn w E W en O 2 2 O £ ~ m «/_ en E- en o H 2 3 Is III- ill O t g III- il^ E- ~ O t 3 o ™ I Z Z o o § < 5 z I— x poco o Z fV— ?l _ j i Eg •I (V i i mo oo ■4-cn u*- irz oo »-x r (/) OUJ 13 o >-•_) IO Z< GO •-•> 211 z oar 2< tnuj fVJ -^IT> (VJ ^f*l z £ r nix r: s 2 cc < : c 5 : ► 5 E OO on : - < c : : : j 5 : . i : 3 z : 5 : 5 i : 5 E > OJOJ CVJCVJ m 0 oj >*>*• «*-*■ UJ <_> 2 < a. > (VJOJ mo 00 00 00 (VI <♦ m*-« c\j i r X < 3: Jj D < > 00 CCOJ 00 00 00 00 o>^ 00 ■4-C3 OO in | 00 set 21 •*oj rvj ^m 01 ZLU <> Z>- rvj r^<*- o 00 1 00 00 00 1 mo 00 00 ^■-H >OC0 coo >*v0 o>o 2 * UJ ru z| '1 curu (\Jf\J (\if\i (\ir\j 0J-« —i.-. ^ ■K UJ _J X < cr Q I C 5 27 C 7 07 Q 7 < Z2 22 Z2 IT Z 22 22 > coon en s\ ir.in ctlt 1 z ■ : oo (VJ.O O.0 : : 5 i E 3 - : - c .n * •1 .*-* ^■-a- >*>* 3D 00 > z~ JI^ J! J! CVJ mo oj ^"4- •*s*- 4-vf in CO 00 00 CM CO CM CO (VJ 0-* UJ rvjo r^^-t r*-oj vO >*(M •z. — 0 ino co~* ^ 00 «=c m cc 00 00 00 00 OO 00 00 2: -DJ- OJvC 00 vO CO© corvj >4-f0 :=> uj z: rs *-«o (no C0»-« OCM 1 «oin — 2: OJ -• -• ru II 1 H ,-H j* 11 1— LU »— CO Q < co 00 21 »;i JK 5^5 — n — ourvi o-# m>o ,na> »-» " ~rt *2 5S 2 -- z (\j(\i QC 2*" m-« *£ d° o'o* o'o* *•■ z DU, r- crcn oaj ** oas •* , 3> * »o *tn •o~ r-*rn *in . z « 0 : : : , r i : : : : : - 2 : ; : 2 2 2 2 '. c > c 5 3 : 2 ! O O O r 3U c 5 a 3 r C 3 e ? 1 3 ♦tfl >orvi ■o-* ■VJ-* •»■ <\io 3>« »■# a>a> 1 z< >o(C a l> — IT. 0 » ip* e l> * •*rn o .c — o .ocn o rjri. ' ' """ 1 n 1 - rvj ► a » "" n - " " * "* a: tr or , < i > *" *" 1 U it in in z- 1 o-— I i n— i in-. : : : ~ r 2 2 2 ' ! C C c o £= f-O oo oo oo o oo oo oo oo oo zl in*. (DO o in* Oj" & * r*o •»cn < — r*p* rn-» "1 *\ "« *- - M» — ™ - - M, mi * Ij CT =3T OI CI car z z ?7 ^5- III- 3d3 oo ccrvj LDOJ (\J iPtM ! : c : ► 3 C 7-5 3 ! f : OS : ; 3 : CI zz E my J (M (VI OJ (MOJ LO ^0 a ■* •**■ *>3- **-s* ^ (M UJ aoo 00 COO OO u (MO —0 om (M OO 2 < ^0 ^■(M 00 (MO cr >*■ •J\ '"* r- < > 2: 00 00 OO OO O O 00 00 OUJ ZZ5 \00 -a-o CO OO * >*->*• •-•-J »MO 0 cm o~* OCO vOvO vOLO x< (M ro <> 2: 0 J (>H UJ (MO >o^- *$■-*■ •-•-J _, _ _H IfX (M ^OvO fM -*Lf! 2< c 9 XI X> X) Xt CM XI *M •— 1> a 3 II II II ac II II 2: 1 1 a: 3: IT II cc X G C - >- UJ > >- > >- o 0 0 vO 2 g 3 no 0 00 0 cn^ 0 f-^H SO sC O CTO OO c 3 — vO-* 0 or*- , 0 m 0 0 >*o SXi-i t J • • ac CD 3D • • u • • CD XI m 11 (TO Q- t— J COC ► sCO *£>* <*<* < 00 ^■^ J-!0 r-x sOvO (M OCT) X| -1 ruoj njnj (MOJ (MOJ (\Jr-4 — (MfM * 'J-' -J X l^UT WW. WW, CTCT yi cr cr.cr WW 2 2 o o Q 2: 2: — z r z X T z X c z 1 : 1T.«V — » : : 3 : : r : > ! ' — 3 2 O 3 CI : ; oo : l •em i : : c cs Ol/l r 5 : c • S3" : C.7 3 .Olfl C2 1 rvjoj o oj -a- ON ojrvj en UJ (_) < ct < > oo oo oo coru 0DCV1 rvj oo fVJO in rsi X- <- jj D J > oo oo oo oo >CCVJ OO oo <\jm oo run oo «OOJ N-lf) C\J ojn rvj r*-m 2 QO □:►-• <>- <> KT.r D 5 l/HO or vir. 01 r z W LP 93. CZ.-T- d) o Q S 3 3 o o c c en oo a i 3: z z z a 1 : 2 : 00 : r ; r : 2 3 c : : : J : 5 c Z i voao : 3 • • : — : \r.tr ■ : : c : 00 : 5 i he •SB : c ► '. | : * ; 3 t F : 3 c : : 3 C L 2 1 — 3 £ o t-UJ too oo oo OJCM oo *~ ir>m (V men x>* .0^ CVJOJ C J z z ■j-kt. C7 z z 2 ? r T X 7 i 3 : Off 3 XlT : 3 E. 5 1 : 5 c E : : > c : : : ► E SO ! *0 i : * 3 e E 3 X>0 : 3 : 5 c ill- 3JJ 2 X T X X 3 X Z X a z : i 5 : ; 3 C : : : ! 3 . • ( so : 3 C : : : — 1 i "5 ~ I 3 j 3 ; 5 c : r ; ■ i 3 3 o o c c CO OO 3.2 Traffic Load This section contains vehicular and passenger load data along Piceance Creek road and into the C-b Oil Shale Tract. Daily incoming vehicle counts taken at the C-b Guard Shack are presented in Table 3.2-1. These data are delineated into counts of cars and trucks from January 1982 to December 1982. The C-b Shale Oil Project provided regular bus service for employees to and from the C-b Tract from April 1, 1978 to October 23, 1982. Table 3.2-2 summarizes bus passenger miles data for January through October 1982. A program of monitoring vehicular traffic was initiated in March, 1978. Counters were placed at three stations: 1 . BT01 - Rio Rlanco Store. 2. RT02 - Cattleguard on CB access road. 3. BT03 - Rio Blanco Lake on Piceance Creek Road. These data are recorded on paper tape, therefore vehicle type (i.e. car or truck) is unknown. Data are collected for a one-week interval once a month. Table 3.2-3 presents a summary of the traffic data collected at the three stations for June through December 1982. s o;o 6- .e 3^ 3~ 2° *>o S £C C" 5- oo g " s ~ 3~ s~ 2° 3" 2- a $* r Sc coo BJ" s ~ 2" a ~ 3 " S~ »~ a 5" £° B« Sc 8~ S~ !t- 2° 5- 5~ S° s- a 2- Sc s° g^ J-.C 2 ° S" S° 5- ""■ 2° s- 8 R" go **■ §* a~ «o o S " s~ - o a ~ a^ u o S S" 8" s* 03O * ~ » " s - r-a ^o S s° 5" a" 2° s° S" B- S s^ ~m s- gfl u> a " s~ 3' •o s° ~" Si s* s* gu, R" 100 S" s~ s° S~ 2- ^~ a •" S3 *" £0 s° is* s° s- s ° s° 5- 5° s° s'3' g 2~ s- jno 5" 9« 2° s° s~ S1" ao 2° 3~ 2 a- co r. 5* S* S~ 2° 3" 2~ ^° s - cS" a ° 2 §•* 52 s* S~ 3° 3° 2° B- 3- a° £ S^ 8- - ■a s* 2 ° S° a rH OJO a ~ S ~° s« 8"° s« 2° S" 3 ° s° 5- 2 ° aw a ° 2 &» £~ S° a- oo § " "° ? " S o s~ a- 2 8" s° 2" r B~ -" a- s° 5 ° 5 - r*° 3- 5 S;'3' a^ r--o s- E~ s° S~ E~ 5" 5 o 2° S~ S B" 8" C0LT> 3° co s~ 3° ^° 3« S^ c^- = = " S" -< ** 8" 2 ° en en 2 ° 3 ° S~ £ ° 2 £° S° ft W - p- S1" 2~ S^ 5° S~ a " . a° AM r sc *oo s w S" S~ 3~ 2 ° CO R~ " 2" S00 N«- *" 2° * 10 U) 2- 8*^ »" - g" £° £° g° g"* 5 £~ * * CO *" * . s- a° 3° sc !S" »o 8"> s- COO 3 * ^o O o^ . r S1" S"° gin S" 100 SO S~ Et~ 3 ^ £° coo - ~= s- 2*1 r ft* s* 5- s~ COO 3 ~ 5~ 2 c - a° £"- S;00 3° K«" R = coo sm B- 3" 3 - N coo g^ 8:= IS0*' = <= 3" go B1" §~ 2 c ^c 5 ~ - £0 5~ S^ S~ s« B- r ft- s- ft = 3- a ° 1 Uh- | I I $ I ! i 1 = E - - Dec. TABLE 3.2-2 1982 MONTHLY BUS STATISTICS FOR CB Month Round CB-Rifle Tri CE P -Meeker Round Passei Rifle Trip igers Meeker Ave rage Passengers/Trip* Rifle Meeker June 112 112 774 1005 6.9 9.0 July 54 54 521 666 9.7 12.3 August 22 22 457 508 20.8 23.1 Sept. 21 21 357 264 17.0 12.6 Oct. 16 16 210 119 13.1 7.4 * Bus capacity is 47. ** Bussing program discontinued 10/23/82. TABLE 3.2-3 C-B 5TEVENS kECQKOE* ThaFFIC COunT JUNE 1962 - OECEHttEK i9d2 LOCATION BT01 8T02 bT03 IN OUT IN our IN OUT YEAH MONTH DAY TKAFFIC TRAFFIC TKAFFIC TKAFFIC TKAFFIC TKAFFIC 6d 6 1 33U 101 155 144 2 150 57 74 113 21 262 8 16 36 22 123 136 117 134 23 156 176 Ufa 124 24 153 193 147 137 25 107 53 l3l 157 26 127 10b 27 93 104 2b Idi 61 7 8 dl 13 8 2 48 84 27 62 dd 30 3 150 143 bO 62 111 121 4 137 157 98 104 126 103 5 140 154 95 93 103 103 7 108 106 49 57 64 101 8 97 78 74 70 9 151 128 73 36 10 49 5 26 66 86 75 93 27 80 83 61 73 28 26 27 65 72 29 31 3d 35 53 30 64 73 113 98 31 70 60 84 65 9 1 65 30 36 50 2U 9 3 17 15 21 55 112 75 75 103 100 22 139 12b 73 76 108 123 23 152 151 66 es5 112 103 £4 175 177 77 81 102 109 25 107 124 34 33 78 83 26 101 110 dZ 20 67 67 27 16b 175 61 56 113 116 ds 169 169 55 57 121 1*6 29 77 33 51 5o 175 161 3U 5 19 12 a H <+ 94 122 2 13 29 3b 3 4tf.£ la MERCURY HG 2 s 0 0 w.5 i«j SILVER Ab 2 s 0 F b.2 20 ZINC Z\ 2 s 0 F b.£ 21 SPC SRC 0 2 / 0 1 / - ] LOCATION L C 2 y - .: N fN 3 MONTH •ifj 4 DAY NY 3 3 r< 0 U T OR i" 6 PRObEHOLE RHH 7 i>£ !-' I '1 ! ):r> R ELEVATION ELV y GH-1 ijp '-i 10 ALUMINUM AL il AWSENIC 4RS 12 BARIUM 3 A 13 80 Run 14 CADMIUM CD lb CALCIUM CA 16 CHROMIUM c« 17 COriALT CO 18 COPHER cu 19 IRON pc d') LE A:J w "5 Pi LITHIUM Ll PP. MAGNESIUM M G di MANGANESE V|(\| 24 MERCURY H<:> c^ MOLYBDENUM MOLY 26 NICKEL N-I 27 POTASSIUM K 2a SELENIUM SE 29 SILVER <>b 30 SODIUM NA 31 S rRONTIU 1 S^ 32 V AN AD Iijm / 33 ZINC Z i 3* ALKALI NX 7Y ALK 35 dICARDONATE HC03 3* C4ReONATt CD J 37 B R G m IDE MR 3H CHLORIDE CL 39 FLUORIDE h 40 HARDNESS MAKD 41 AMMONIA N H J 42 KUELDMIT KJN 43 NITRATE J03 uu BIOOXYOE 10 i 0 0 4b CrttMOXYi)£ * C 0 J» -+»-> ."; [| 3*^E - S E ;jl jH <*7 PhE:nuLS _,, , 4P SILICA SLC 49 bOL LDSDISS ros SO bUbbOLiD b U S 5 51 SuLr A ft S04 52 T I j •-' R I D I T Y r 53 DISSORGCARB DOC 5^ TOTALCOLIF rcoLi 55 FcCALCuLIF -■- — - - 5 '" 5 b > 0 A Y 00 TABLE 4.1-1 (Contd) DESCRIPTI J ; 1 2 /■ ,i/V*IS LIST r IELONAMt bYNUNYM 1 2 3 4 5 LOCATION YE A* -MONTH DAY DcPT-i LOG Ym ov OP KP0S08: NUMaEH OF •« E C 0 n 0 5 i S i A S 1 I S i I S 1 I DESCRIPTION FOP PAMlS FILE 02/01/03 LIST FIELDNAME 1 LOC LO 2 YP rn 3 •-10 •"0 4 OY or b STATUS sr b uLV T a DP / T£mP FE Lt VEL s Li 3 v) £ V LEVEl i T i S Re F _ii 1 TfPE A LENb TH 4 2 S 0 I d 2 S 0 I 2 d S 0 I 2 d S 0 A ft c s u F 9.4 d s 0 F 5.1 d s J F 4.1 £ s 0 p b.l d s 0 F b.l PRUciGS: NUMBtR uF RECOKDS IN TA6L£= DESCRIPTION rQA RAMlb FILE WTRUSAGE u2/01/^3 LIST FIELDNAME 1 SHAFT ? YFn* 2 MONTH 4 DAy 5 FLO.v LEVEL SEGMENT SYNONYM LEtfi 2 :l TYPJ S F AC r o r i TYRE A I L c. N (j 3 2 T-> •10 OY FL 2 5 S i I F b.l COPDS IN TAbLi i = b L. [ N E s= b TABLE 4.1-1 (Contd) DESCRIPTION FOR NAMIS FILE 02/02/63 SYNONYM T FIELDNAME 1 LOC 2 YP 3 MO 4 OY 3 Talk 6 al 7 APS 8 FCOLIF 9 6A 10 MC03 11 600 12 H 13 8« 14 TCOLIF lb CD 16 CA i 7 C03 18 CL IS* CR do COO 21 CU 22 DO ^3 DOC 2<* LAS CO F 26 HARD 27 Ft 28 KJN ^9 PB JU LI 31 Mo 32 MN JJ HG 34 MOLY Jb NI 36 N03 37 OLGR 3a S203 Jv PH < * 4IS F ILt L fLAiK 1 trailer rRL 2 YEAH fH 3 MONTH MQ 4 UAY iJY 5 noUR HK 6 NITROGOX NOX 7 NITRICOX ■JO 3 SULFOIOX S02 9 *)INOSP30 MMHC SEGMENT FACTOR TrPL LtNGTH 31 31 31 31 il 31 31 31 31 31 31 31 RPO^OH: NUMBER OF RECORDS IN Ta^Lc Eb LINES= Table 4.1-2 (Contd) LIST 3 MOMTH -U) t* DAY j r 5 h tflNusPa I dlNL)0lrt« vl; 8 relhumu* KH 9 TEi^Pi 7-" 10 Wl MOSP iT vJ.i.J V -; 27 3 I 7 ..• S 1 0 0 2^ NO* il)1 J 0 -1 «i 29 VE*T*0 l i>o 7 .« 30 BIVvvS20 0 H fl 31 HON ,ij^0 0 Id 3d \/ERT VO200 7 H 3 3 Wl nDSOd ■'■ u 34- v I N 0 S 0 3 0 35 rtlNOSDIOO .-< i > 3<: *lNUSD20u •1 1 > 3 7 HWIN0SU3U «b 38 tfitfj>i)SD30 V 5 3v ywiivosoioo *S *0 ^W I NO SOI 00 »/s '•*■ i . 5 O'd 0 0 n v 42 v wi i *»USJ2U0 vS 0 Jl 31 Jl Jl Jl Jl Jl Jl Table 4.1-2 (Contd) l t v t : l s e b -i t n r LIST FIELDNAME SYNONYM LEvtL TYPE: FACTOR F IELDNAME 1 STmI ion 2 r£A^ .■J HON ) .-f a DAY b 10 UH ft tflNUSP 7 '*(INDUR 8 TE"*P y SR/PR 31 31 KP0808: NUMBER Of- RECUkDS In fA^Lc = DESCRIPTION FOR RAM IS FILE H^R TIC 02/01/83 FItLONAME sy jon r* 1 TRAILER r^L l> YEAR Y^v 4 ■UjNT-i ./.() s 10 F d 3 MONTH MO j b i i I 2 4 DAY DY 4 5 31 I d 5 STRESS ST* 3 S 1 A D 6 COUNT cn r b S 1 I <+ 7 SEX sx b s 1 A 2 a AGE Ab o s 1 A 10 9 WEATHER *THR f J 1 A ^u -fPO-iOd: NUMBER 01 - RECORDS IN 1 'AaLn= y LlN£S= ^ DESCRIPTION FOR RAMIi 02/01/43 1 STATION d YEAk 3 MONTH 4- DAY ij STAT 10 10 11 12 SNOOP in SNOMOl bT s RPOfci [)8: NOMBLrt U F ^ E C DESCHIPT: ,'2/01/b SYNONYM LEVEL TYPE FACTOR TrPE LENGTH bT IS 2 A 4 fR ^ S 0 12 MO J S 0 12 DY 4 S Old 1 d L I N E S = LOCATI /£ah D A Y ' 1NT, 2 S 0 I 2 3 MO 40 d s 0 I 2 ** OY OY d s 0 I 2 2 5 NR rtR c s 0 I MN 4fM d s 0 I d 7 LEV LcV d s u 7.2 - Station Number _> Study or Category (Example: air quality trailer) Program area Examples: A = air N = noise W = water R = biology P = photography The codes are presented in Table 4.2-1 for the environmental program along with the current station designations. This list contains codes for all the sampling/monitoring stations ever designated for environmental data collection. An attempt has been made throughout this report to refer to all stations in terms of their four-digit codes. Table 4.2-1 COMPUTER COPE AND STATION I.D. CROSS-REFERENCE Air Quality & Meteorology Station Des i gnat ion Comp uter Code Met. Tower: 0 St a. 023 AA23 Trailers: 020 AB20 021 AB21 022 AB22 023 AR23 024 AB24 Acoustic Radar Sta. 020 AC20 021 AC21 023 AC23 MRI and Particulates Sta. 020 AD20 031 AD31 032 AD32 033 AD33 041 A041 042 A042 043 A043 044 AD44 056 AD56 Visibility View I AV01 View II AV02 View III AV03 View IV AV04 Biology Deer Pellet Group Densities Transect Vegetation Type Location Treatment (Computer Code) CPJ Off Tract Control BA01 BA02 BA03 BA04 BA05 BA06 RA07 BA08 BA09 On Tract BA17 BA18 BA25 BA28 BA29 BA30 BA31 Biology (Cont'd) Transect Vegetation Type Location Treatment (Computer Code) CPJ On Tract Development RA32 Sprinkler RA20 Development BA21 RA23 PJ Off Tract Control RA13 RA14 RA15 Development PA10 BAH RA12 RA16 On Tract Control RA19 BA26 RA27 Development PA22 RA24 Brush Beaten* SR Off Tract Development BA41 RA42 RA43 RA44 RA45 RA46 BA47 RA48 RA49 Biology (Cont'd) Programs: Deer Distribution 8 Migration and Road Kills Mile Location Computer Code Marker North 8 East of Piceance Creek Road Meadows; South 8 West of Piceance Creek Road 41 White River City BN41 RM41 40 Piceance Bridge BN40 RM40 39 Lower Canyon BN39 RM39 38 Piceance Canyon BN38 RM38 37 Yellow Creek BN37 RM37 36 Stinking Springs BN36 BM36 35 Old Bridge BN35 BM35 34 Little Hills Turnoff BN34 BM34 33 Old Corrals & Buildings BN33 BM33 32 Burk Ranch BN32 BM32 31 Ranch BN31 BM31 30 BN30 RM30 29 BN29 BM29 28 Bureau of Mines BN28 BM28 27 Ryan Gulch RN27 BM27 26 Pump Station BN26 BM26 25 BN25 RM25 24 Rock School BN24 BM24 23 AQ 021 BN23 BM23 22 Pat Johnson's Ranch BN22 BM22 21 Hunter Creek BN21 RM21 20 PL Gate BN20 RM20 19 AQ 020 BN19 RM19 18 Sorghum, Cottonwood BN18 RM18 17 Stewart Gulch Rd. BN17 RM17 16 AQ Trailer 022 BN16 BM16 15 Oldland's Ranch BN15 BM15 14 Oldland's Ranch BN14 BM14 13 Pond and Cabin BN13 BM13 12 Sprague Gulch BN12 RM12 11 Cascade Gulch BN11 RM11 10 13 Mile Gulch RN10 RM10 9 14 Mile Gulch BN09 BM09 8 Schutte Gulch BN08 BM08 7 Robinson's Ranch BN07 RM07 6 BN06 RM06 5 2 Old Cabins (35 MPH Curve) RN05 RM05 4 McCarthy Gulch RN04 RM04 3 Cow Creek RN03 RM03 2 Mahogany Outcropping BN02 RMO? 1 Woodward Ranch RN01 RM01 n Rio Blanco Store RMOO RMOO III- 3 73 Biology (Cont'd) Programs Deer Mortality Deer Age Class Coyote Abundance Lagomorph Abundance Small Mammals General Location North Side of Piceance Creek South Side of Piceance Creek Computer Code rdoi B002 RD03 RD04 B0n5 BD06 BD07 BP08 bdo9 RP10 General Area of Tract 8 Transects for Total for 30 miles 15 mi seg. near Hunter (Control) 15 mi seg. on & South of Tract (Development) Identical Locations to Deer Pellet Group Densities Piceance Creek (Development) On-Tract-West Piceance Creek (Control) On-Tract-East Sprinkler Area Section B Sprinkler Area (Control) Sprinkler Area (Development Sprinkler Area (Control) BF01 BF01 BF02 thru BF08 BA01 to RA49 BG01 BG02 BG03 BG04 BG05 BG11 BG22 BG33 Avifauna Songbirds and Gamebirds Raptors Aquatic Ecology Benthos Peri phy ton N.W. of Tract-near Jimmy PJ-CH-C On-Tract-Scandard PJ- -D On-Tract-Cottonwood PJ-CH-D S. of Tract-Retween WSN Fork Stewart PJ-CH-C Sprinkler The Entire Tract and Surrounding Study Areas. USGS 09306007 (Control) USGS 09306058 (Development) USGS 09306061 (Development) Piceance Creek Upstream (Control) Piceance Creek Downstream (Development) BH01 RH02 RH03 BH04 BH05 RI01 WU07 WII58 WU61 WP01 WP02 WP03 Biology (Cont'd) Programs General Location Comp uter Code Water Quality USGS 09306061 (Development) WU61 Vegetation Community Structure Plots * ** *** Chained pinyon juniper (1978) (Pev) RJ01 BJ11 BJ21 Chained pinyon juniper (1978) (Cont) BJ02 BJ12 BJ22 Upland sagebrush (1980) (Cont) BJ03 BJ13 BJ23 Rottomland sagebrush (1980) (Cont) BJ04 BJ14 BJ24 Pinyon juniper woodland (1979) (Pev) BJ05 RJ15 BJ25 Pinyon juniper woodland (1979) (Cont) BJ06 BJ16 BJ26 Biology (Cont'd) Program Micro CI imate Traffic Count III Noise Traffic Noise IV Photography General Location Computer Code MC Sta. 1 BCGl 2 BCfi-2 3 BCG3 4 BCG4 5 BCG5 6 BC06 7 RC07 8 BC08 9 BC09 13 BC13 Rio Rlanco Store BT01 South of Cattle Guard BTD2 Rio Blanco Lake BT03 Station Designation Computer Code Sta. IX NB01 XV NB15 PI PA01 P2 PAG2 P3 PA03 P4 PA04 P5 PA05 P6 PA06 P7 PAG7 P8 PA08 P9 PA09 PIG PA10 Pll PAH P12 PA12 P13 PA13 P14 PA14 P15 PA15 P16 PA16 P17 PA17 P18 PA18 P19 PA19 P20 PA20 P21 PA21 P22 DA22 P23 PA23 P24 PA24 P25 PA25 Photography Program Photography General Location Computer Code P26 PA26 P27 PA27 P28 PA28 P29 PA29 P30 PA3fl P31 PA31 P32 PA32 P33 PA33 . P34 PA34 P35 PA35 V. Water Program U.S.G.S. Stream Gauging Station Alluvial Wells Springs and Seeps Station Designation Computer Code Elevation (ft) 09304800 WU48 09306007 WU07 09306036 WU36 09306039 WU39 09306042 WU42 09306061 WU61 09306050 WU50 09306052 WU52 09306058 WU58 09306033 WU33 09306025 WU25 09306015 WU15 09306028 WU28 09306022 WU22 09306200 WUOO 09306222 WU62 09306255 WU55 A-l WA01 6282.2 A-2 WA02 6284.5 A-3 WA03 6^48.6 A-4 WA04 0000.0 A-5 WA05 6345.0 A-5A WA55 6460.0 A-5B WA56 0000.0 A-6 WA06 6360.0 A-7 WA07 6383.8 A-8 WA08 6409.0 A-9 WA09 6540.2 A-10 WA10 6610.6 A-ll WA11 6503.8 A- 12 WA12 6691.8 A-13 WA13 0000.0 CR S-l WS01 CB S-2 WS02 CR S-3 WS03 CB S-4 WS04 CB S-6 WS06 CB S-6A WS66 CR S-7 WS07 CR S-8 WS08 CB S-9 WS09 CR s-in (W-3) WS10 (WS34) CR Seep A WS11 S-102 WS12 CER-1 WS21 B-3 WS22 H-3 WS23 F-3 WS24 III- 3b3 Water Program Station Designation Computer Code Elevation (ft) Springs and Seeps Figure 4-A WS25 (cont ) W-4 W-9 CER-7 S-9 P3 & P3A CER-6 WS26 WS27 WS28 WS29 WS30 WS31 W-2 (S-9) WS32 S-2 WW33 W-3 (CB S-10) WS34 (WS10) Figure 4 WS35 S-ll (S-101) WS36 Old! and Spring WS37 Precipitation CB-020 CB-023 LH H SG CG JOS EFPC EMFPC UCBW AB20 AB23 WROl WRC2 WR03 WRC4 WR05 WR06 WR07 WRC8 V. Water (cont 'd) Upper Aqinf er Well s Before Recompl etions Recompl eti on #1 Recompl eti on $2 Station Code WX02 Elevation (ft) Station 6737.0 CB-2 Code W002 Pate Station Code Date CB-2 11-18-80 CB-4 WX04 7057.3 CB-4 WE04 11-20-80 SG-10A WX10 6953.6 SG-10A-1 WE10 * SG-10A-1 WG51 SG-10A-2 wmo * SG-10A-2 SG-10A- Annulus WE51 W051 * SG-1A WX11 6425.0 SG-1A-1 SG-1A-2 WEll wnn 12-12-80 12-12-80 SG-1-2 WX12 6428.6 SG-1 -2 WP12 11-01-80 14X-7 WX14 6909.0 14X-7-1 14X-7-2 wni4 wni5 11-15-80 11-15-80 SG-17-2 WX17 7038.6 SG-17-2 SG-1 7-3 SG-1 7-4 WE17 wnu WC17 11-03-80 11-03-80 11-03-80 SG-18A WX18 7386.6 SG-18A-1 SG-18A-2 SG-18A-3 WG18 WE18 wnis 12-02-80 12-01-80 12-02-80 SG-19 WX19 6384.4 SG-19 WD19 SG-20 WX20 6358.0 SG-20-1 SG-20-2 SG-20-3 WG20 WE20 WD20 11-15-80 11-15-80 11-15-80 SG-21 WX21 6813.3 SG-21-1 SG-21-2 SG-21-3 SG-21-4 WH21 WG21 WE21 WD21 12-08-80 12-08-80 12-08-80 12-09-80 AT-1C-3 WX44 6906.0 SG-11-3 WX55 6903.1 SG-6-3 WX63 6890.7 SG-8-2 WX82 0000.0 SG-9-2 WX92 6873.0 SG-11-3 WP52 10-18-80 SG-6-3 WD61 10-20-80 SG-9-2 WE91 12-11-80 SG-9-3 WP91 12-11-80 SG-9-4 WC91 12-12-80 32X-12 WX32 6830.3 33X-1 WX33 6707.1 41X-1 WX41 6460.0 TH75-5A WX64 7178.0 TH75-13A WX65 6390.0 TH75-18A WX67 6740.0 TH75-9A WX69 7350.0 CER RB-P-02 WX71 6580.0 TH75-15A WX72 6805.0 UNION 8-1 WX73 8142.3 COLONY 12-596 WX74 0000.0 TH-5 WX75 7583.2 Recompletion #1 not satisfactory for these strings: use #2. I [I- Lower Aqui fer Well s Before Completion Recompletion #1 Recompletion #2 Station Code WY01 Elevation ' 6763.4 Station CB-1 Code wnoi Date Station Code Date CB-1 11-14-80 CB-3 WY03 6743.1 CB-3 WE03 11-18-80 SG-10 WY09 6952.5 SG-10R WG10 SG-10 WD90 SG-1-1 WY12 6428.8 SG-1-1 WG12 11-1-80 SG-17-1 WY18 7038.6 SG-17-1R WY17 SG-17-1 WG17 11-03-80 AT-1C-1 WY45 6906. n AT-1C-2 WY46 6906.0 SG-11-1 WY51 6903.1 SG-11-1R WY52 SG-11-1 WG52 10-18-80 SG-11-2 WY54 6903.1 SG-11-2 WE52 10-18-80 SG-6-1 WY61 6890.7 SG-6-1 WE61 10-20-80 SG-6-2 WY62 6890.7 SG-6-2 WG61 10-20-80 SG-8 WY80 6540.8 SG-8R WY81 SG-9-1 WY91 6873.0 SG-9-1 WG91 12-11-80 AT-1 WY44 6909.0 TH75-5B WY64 7178.0 TH75-13B WY65 6390.0 EOUITY-1 WY66 6286.0 TH75-10B WY68 6840.0 TH75-9B WY69 7350.0 EQUITY-S-1A WY70 7070.0 CER RB-D-03 WY71 6580.0 TH75-15B WY72 6805.0 TG71-3 WY75 6820.0 TG71-5 WY76 6865.0 GETTY 9-40 WY77 7777.8 TG71-4 WY78 7145.0 EQUITY BS-13 WY79 7020.0 New Wells Station Code W057 Date Elevation 7036.0 (ft) SG-17A 12-02-80 AT-in-1 WG41 11-16-80 6909.0 AT-1D-2 WE41 AT-1D-3 WD41 11-16-80 6909.0 AT-1A WV37 6909.0 AT-1A1 WX38 6909.0 AT-1B WV40 6909.0 V. Water (cont'd) Refore Recompletions Recompletion £1 Station Code Elevati on ■ Station Code Date Composite Wells: Seepage Monitoring Wells: Reinjection Wells: Le Claire Filter: BEFORE FILTER W001 AFER FILTER W002 AT REINJECTION POINT W003 GREENO 404 WV01 6411.0 OLPLAND 3 WV02 6490.0 GP-17X-RG WV03 BUTE 25 WV04 LIBERTY BELL 12 WV05 7420.0 TOSCO WELL WV06 21X12 WV07 6794.8 22X1 WV08 6704.1 43X2 WV09 6692.7 32Y-12 WW32 31X-12 WW12 6764. 41X-13-2 WW13 6953.6 22X-17 WI19 11X-18 WI18 6950.0 24X-17 WI17 Ponds: Shafts: POND A WN01 PONP B WN02 POND C WN03 POND A SPRINGS WN11 POND B SPRINGS WN12 POND C SPRINGS WN13 POND A INLET WN21 POND B INLET WN22 POND C INLET WN23 POND A-B CROSSOVER WN31 POND B OUTLET WN32 POND C OUTLET WN33 BACKWASH POND WN04 BACKWASH POND SPRINGS WN14 BACKWASH POND INLET WN24 BACKWASH POND OUTLET WN34 POND A-B DISCHARGE WN40 V/E SHAFT PROBE HOLES WZ01 SERVICE SHAFT PROBE HOLES WZ02 PRODUCTION SHAFT PROBE HOLES WZ03 V/E SHAFT WATER RING WZ11 SERVICE SHAFT WATER RING WZ12 PRODUCTION SHAFT WATER RING WZ13 31X12 WW22 11/80 Water (cont'd) Before Recompletions Recompletion #1 Station Code WZ21 Elevation ' Station Code Date V/E SHAFT SUMP SERVICE SHAFT SUMP WZ22 PRODUCTION SHAFT SUMP WZ23 V/E SHAFT WZ31 PRODUCTION SHAFT WZ33 SHAFT GROUT HOLE WZ41 Discharge Monitoring Stations Mobil Wells NO NAME GULCH WU42 UPPER PICEANCE CREEK WN41 LOWER PICEANCE CREEK WN42 HUNTER CREEK WU02 WILLOW CREEK WUOl WELL NO. , 1 MWOl 6510 WELL NO, , 2 MW03 6480 WELL NO. , 3 MW03 6618 WELL NO. 12 MW12 6486 WELL NO. 13 MW13 6509 4.3 Station Coordinates Environmental monitoring stations have been specified by station computer code, latitude and longitude, township and range, Colorado State co- ordinates and elevations. In cases where stations represent biological transects several meters in length, the coordinates reported are those of a point on the map near the station label. A jacket map of the Tract area (Figure 4.3-1) showing all monitoring stations on and near Tract C-b, required by the Interim Monitoring Program, and a jacket map (Vol. I, Figure 2.2-1) of off tract monitor- ing stations, required by Water Augmentation Plan, contain the four-digit computer station codes. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE S LONGITUDE I. AIR QUALITY AND METEOROLOGY AA23 AB20 *AB23 AB24 * AB26 AC20 AD42 AD56* II. BIOLOGY *BA01 *BA02 BA03 BA04 BA05 BA06 BA07 39° 47' 43" 108° 12' 57" 39° 50' 10" 108° 13' 08" 39° 47' 44"* 108° 12' 54" 39° 48' 49" 108° 12' 21" 39° 108° 50' 13' 08' 06' 39° 108° 48' 13' 58' 08' 39° 108° 49* 12' 31' 23' 39° 108° 50' 16' 15' 12' 39° 108° 50' 16' 3' 4' 39° 108° 49' 16' 32' 51 39° 108° 49' 15' 12' 46' 39° 108° 48' 16' 39' 14' 39° 108° 48' 16' 19' 19' 39° 108° 47' 16' 49' 28' TOWNSHIP & RANGE STATE COORDINATES* ELEVATION T3S R96W Sec 18 NW1/4, NW1/4, NW1/4 N E 180,000 1,237,045 6950' T2S R97W Sec 36 NE1/4, SE1/4, NE1/4 N E 194,845 1,236,605 6280' T3S R96W Sec 18 NE1/4, NW1/4, NW1/4 N E 180,000 1,237,234 6950' T3S R96W Sec 6 NE1/4, SW1/4, SE1/4 N E 186,542 1,240,000 6750' N E 166,900 1,235,200 T2S R97W Sec 36 NE1/4, SE1/4, NE1/4 N E 194,594 1,236,794 6310' T3S R97W Sec 1 SE1/4, NE1/4, SE1/4 N E 187,548 1,236,417 6720' T3S R96W Sec 6 NE1/4, NW1/4, NE1/4 N E 190,760 1,240,005 6380' T2S R97W Sec 34 SW1/4, NE1/4, NW1/4 N E 195,788 1,222,268 6480' T2S R97W Sec 34 SE1/4, SW1/4, NW/14 N E 194,594 1,222,079 6500' T3S R97W Sec 3 NE1/4, NE1/4, NW1/4 N E 191,388 1,222,708 6640' T3S R97W Sec 3 NE1/4, NW1/4, SE1/4 N E 189,371 1,224,091 6600' T3S R97W Sec 3 SW1/4, SE1/4, SW1/4 N E 186,039 1,221,828 6720' T3S R97W Sec 10 SE1/4, SW1/4, NW1/4 N E 184,028 1,221,388 6780' T3S R97W Sec 10 NW1/4, SW1/4, SW1/4 N E 181,074 1,220,571 6860' Plane Coordinate Projection Tables, Colorado, Special Publication Mo. 276, U.S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES TOWNSHIP 8 RANGE STATE COORDINATES* ELEVATION T3S R97W Sec 16 N 179,497 6860' NE1/4, SE1/4, NE1/4 E 1,218,748 T3S R97W Sec 16 N 177,108 6940' SE1/4, NW1/4, SE1/4 E 1,218,805 T2S R97W Sec 25 N 198,868 6600' SW1/4, SW1/4, NW1/4 E 1,231,137 T2S R97W Sec 25 N 198,554 6580' SE1/4, NE1/4, SW1/4 E 1,234,091 T2S R97W Sec 25 N 196,731 6600' SE1/4, SE1/4, SE1/4 E 1,236,668 T2S R96W Sec 31 N 192,834 6600' SE1/4, NE1/4, SE1/4 E 1,241,451 T2S R96W Sec 33 N 192,645 6700' SW1/4, NW1/4, SW1/4 E 1,246,920 T2S R96W Sec 33 N 192,079 6600' NW1/4, SE1/4, SW1/4 E 1,248,868 T2S R97W Sec 36 N 193,525 6500' NW1/4, NW1/4, SW1/4 E 1,231,828 T3S R97W Sec 11 N 185,097 6680' SW1/4, NW1/4, NE1/4 E 1,229,308 T3S R97W Sec 14 N 180,760 6820' NW1/4, NE1/4, NE1/4 E 1,230,131 T3S R97W Sec 12 N 181,451 6680' NE1/4, SW1/4, SW1/4 E 1,232,017 T3S R96W Sec 7 N 182,142 6860' SE1/4, SE1/4, NW1/4 E 1,238,554 T3S R96W Sec 7 N 181,640 6820' NE1/4, SE1/4, SW1/4 E 1,239,057 T3S R96W Sec 18 N 176,165 6860* SE1/4, NE1/4, SW1/4 E 1,238,742 T3S R96W Sec 7 N 181,954 6840' NE1/4, SE1/4, SE1/4 E 1,241,137 Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U.S. Government Printing Office. STATION CODE LATITUDE a LONGITUDE BA08 39° 108° 47' 16' 33" 38" BA09 39° 108° 47' 16' 9" 49" BA10 39° 108° 50' 14' 48" 20" BAH 39° 108° 50' 13' 46" 42" BA12 39° 108° 50' 13' 29" 8" BA13 39° 108° 49' 12' 52" 5" BA14 39° 108° 49' 10' 52" 55" BA15 39° 108° 49- 10' 46" 30" BA16 39° 108° 49' 14' 56" 9" BA17 39° 108° 48' 14' 32" 38" BA18 39° 108° 47' 14' 49" 25" BA19 39° 108° 47' 14' 56" 2" BA20 39° 108° 48' 12' 0" 32" BA21 39° 108° 4' 12' 6" 33" BA22 39° 108° 47' 12' 4" 5" BA23 39° 108° 48' 12* 51" STATION CODE BA24 BA25 BA26 BA27 BA28 BA29a BA29b BA30 BA31 BCOl BC02 BC03 BC04 BC05 BC06 BC07 ENVIRONMENTAL DATA COLLECTION STATION COORDINATES LATITUDE & LONGITUDE TOWNSHIP 8 RANGE STATE COORDINATES* ELEVATION 39° 48' 108° 11' 51" 51" T3S R96W Sec 5 NE1/4, SW1/4, SW1/4 N E 186,668 1,242,398 6640' 39° 47' 108° 11' 16" 46" T3S, R96W Sec 17 NW1/4, NE1/4, SW1/4 N E 177,045 1,242,457 7000' 39° 48' 108° 10' 8" 52" T3S, R96W Sec 9 NW1/4, NW1/4, SW1/4 N E 182,142 1,246,857 6840' 39° 47' 108° 11' 4" 13" T3S R96W Sec 16 NW1/4, SW1/4, SW1/4 N E 175,725 1,245,034 7020' 39° 48' 108° 14' 28" 29" T3S R97W Sec 11 SE1/4, NW1/4, NE1/4 N E 184,657 1,230,000 6680' 39° 47' 108° 14' 43" 16" T3S R97W Sec 14 NE1/4, NE1/4, NE1/4 N E 180,068 1,230,885 6860' 39° 47' 108° 14' 38" 23" T3S R97W Sec 14 SW1/4, NE1/4, NE1/4 N E 179,622 1,230,320 6900' 39° 48' 108° 12' 49" 35" T3S R96W Sec 6 NE1/4, SE1/4, SW1/4 N E 186,542 1,238,931 6720' 39° 48' 108° 12' 23" 40" T3S R96W Sec 7 NE1/4, SE1/4, NW1/4 N E 183,965 1,238,491 6820' 39° 47' 108° 11' 56" 58" T3S R97W Sec 8 NW1/4, SW1/4, SW1/4 N E 181,137 1,241,640 6860' 39° 47' 108° 14' 48" 22" T3S R97W Sec 11 SW1/4, SE1/4, SE1/4 N E 180,634 1,230,382 6860' 39° 46' 108° 12' 57" 1" T3S R96W Sec 17 SW1/4 SW1/4, SW1/4 N E 175,097 1,241,262 7100' 39° 47' 108° 13' 28" 32" T3S R97W Sec 13 NW1/4, SW1/4, NE1/4 N E 178,491 1,234,217 6700' 39° 48' 108° 11' 3" 58" T3S R96W Sec 8 SE1/4, NW1/4, SW1/4 N E 181,765 1,241,702 6840' 39° 47' 108° 10' 54" 44" T3S R96W Sec 9 SE1/4, SW1/4, SW1/4 N E 180,697 1,247,422 6900' 39° 47' 108° 13' 44" 17" T3S R97W Sec 13 NW1/4, ME1/4, NE1/4 N E 180,068 1,235,474 6940' Plane Coordinate Projection Tables, Colorado, Special Publication Mo. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE & LONGITUDE BC08 39° 108° 50 13 30" 36" BC09 39° 108° 49 11 30" 53" BC13 39° 108° 47 11 19" 20" BDOl 39° 108° 50 14 59" 26" BD02 39° 108° 50 13 44" 55" BD03 39° 108° 50 12 34" 57" BD04 39° 108° 50 12 3" 19" BD05 39° 108° 50 11 9" 41" BD06 39° 108° 49 10 46" 34" BD07 39° 108° 49 13 51" 16" BD08 39° 108° 49 12 46" 43" BD09 39° 108° 49 12 26" 28" BDIO 39° 108° 49 11 17" 49" Coordinates BFOl 39° 108° 47 16 53" 35" BF02 39° 108° 48 14 02" 27" BF03 39° 108° 46 13 40" 32" TOWNSHIP 8 RANGE T2S R97W Sec 25 NW1/4, SW1/4, SW1/4 T3S R96W Sec 5 NE1/4, NW1/4, NW1/4 T3S R96W Sec 17 NE1/4, NW1/4, SE1/4 T2S R97W Sec 26 SE1/4, SE1/4, NE1/4 T2S R97W Sec 25 NW1/4, NE1/4, SW1/4 T2S R96W Sec 30 SW1/4, SW1/4, SW1/4 T2S R96W Sec 31 SW1/4, SE1/4, ME1/4 T2S R96W Sec 32 NW1/4, SEl/4,NWl/4 T2S R96W Sec 33 NW1/4, SE1/4, SW1/4 T2S R97W Sec 36 SW1/4, NE1/4, SE1/4 T2S R96W Sec 31 NW1/4, SE1/4, SW1/4 T3S R96W Sec 6 SW1/4, NW1/4, NE1/4 T3S R96W Sec 5 NE1/4, SW1/4, NW1/4 STATE COORDINATES* M 196,920 E 1,234,468 N 190,634 E 1,242,331 N 177,234 E 1,244,531 N 200,000 E 1,230,697 N 198,428 E 1,233,022 N 197,171 E 1,237,548 N 194,028 E 1,240,445 N 194,468 E 1,243,400 N 192,017 E 1,248,554 N 192,897 E 1,235,914 N 192,394 E 1,238,491 N 190,257 E 1,239,559 N 189,245 E 1,242,582 Coordinates Picked Near Transect Map Code Level T3S R97W Sec 9 ME1/4, SE1/4, SE1/4 T3S R97W Sec 11 SW1/4, NE1/4, SE1/4 T3S R97W Sec 24 NW1/4, SW1/4, ME1/4 N 181,514 E 1,220,068 M 182,017 E 1,230,068 N 173,651 E 1,234,091 ELEVATION 6350' 6400' 6700" 6380' 6370' 6420' 6420' 6420' 6500' 6380' 6360' 6410' 6420' 6900* 6800' 6860' Plane Coordinate Projection Tables, Colorado, Special Publication Mo. 276, U.S. Government Printing Oft ice. I I [- J93 ENVIRONMENTAL DATA COLLECTION STATION COORDINATES 5TATI0N CODE LATITUDE 8 LONGITUDE TOWNSHIP 8 RANGE STATE COORDINATES* ELEVATION BF04 39° 108° 46 ; 13' 25" 04" T3S R97W Sec 24 NE1/4, NE1/4, SE1/4 N E 172,017 1,236,228 7190' BF05 39° 108° 47' 12' 30" 9" T3S R96W Sec 18 NE1/4, SE1/4, NE1/4 N E 178,491 1,240,697 6980' BF06 39° 108° 47' 11' 44" 43" T3S R96W Sec 17 NW1/4, NE1/4, NW1/4 N E 179,874 1,242,771 6940' BF07 39° 108° 46' 11' 09" 49" T3S R96W Sec 20 SW1/4, SE1/4, SW1/4 N E 170,257 1,242,017 6820' BF08 39° 108° 47' 31" 9" T3S R96W Sec 16 NE1/4, SW1/4, NW1/4 N E 178,491 1,245,411 6950' BGOl 39° 108° 50' 13' 17" 58" T2S R97W Sec 36 SW1/4, NE1/4, NW1/4 N E 195,662 1,232,708 6360' BG02 39° 108° 47' 13' 46" 23" T3S R97W Sec 13 NE1/4, NW1/4, NE1/4 N E 180,320 1,234,971 6940' BG03 39° 108° 49' 12' 39" 10" T2S R96W Sec 31 SE1/4, SE1/4, SE1/4 N E 191,577 1,241,011 6300' BG04 39° 108° 47' 10' 40" 55" T3S R96W Sec 16 SW1/4, NW1/4, NW1/4 N E 179,371 1,246,542 6860' BHOl 39° 108° 48' IB' 46" 59" T3S R97W Sec 5 SE1/4, SE1/4, SW1/4 N E 186,731 1,223,022 6660' BH02 39° 108° 47' 13' 59" 38" T3S R97W Sec 12 SW1/4, SW1/4, SE1/4 N E 181,640 1,233,902 6780' BH03 39° 108° 48' 13' 14" 1" T3S R96W Sec 7 SW1/4, NW1/4, SW1/4 N E 183,085 1,236,794 6840' BH04 39° 108° 46' 10' 48" 56" T3S R96W Sec 20 NE1/4, SE1/4, ME1/4 N E 174,091 1,246,291 7120' BJOl 39° 108° 47' 11* 56" 58" T3S R96W Sec 8 NW1/4, SW1/4, SW1/4 N E 181,137 1,241,640 6860' BJ02 39° 108° 47' 14' 43" 23" T3S R97W Sec 14 NW1/4, NE1/4, NE1/4 N E 180,194 1,230,320 6870" BJ03 39° 108° 46' 12' 58" 3" T3S R96W Sec 17 SW1/4, SW1/4, SW1/4 N E 175,285 1,241,074 7100' Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, II. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION BJ04 39° 108° 47' 13' 24" 30" T3S R97W Sec 13 SE1/4, SW1/4, NE1/4 N E 178,114 1,234,405 6700' BJ05 39° 108° 48' 11' 08" 54" T3S R96W Sec 8 SE1/4, NW1/4, SW1/4 N E 182,268 1,242,017 6840' BJ06 39° 108° 47' 10' 53" 42" T3S R96W Sec 9 SE1/4, SW1/4, SW1/4 N E 180,634 1,247,611 6880' III. NOISE NA02 39° 108° 50' 14' 43" 19" T2S R97W Sec 25 SW1/4, NW1/4, SW1/4 N E 198,302 1,231,200 6520' NA09 39° 108' 49' 14' 08" 17" T3S R97W Sec 2 SE1/4, SE1/4, NE1/4 N E 188,679 1,231,074 6660" NA22 39° 108° 50' 14' 43" 19" T2S R97W Sec 25 SW1/4, NW1/4, SW1/4 N E 198,302 1,231,200 6520' NBOl TS35 R96W Sec 1 N E 187,422 1,234,405 NB15 39° 108° 49' 13' 04" 26" T3S R97W Sec 1 NE/14, NW1/4, SE1/4 N E 188,177 1,234,971 6720' IV. PHOTOGRAPHY PAOl 39° 108° 51' 11' 50" 23" T2S R96W Sec 20 SW1/4, SW1/4, NE1/4 N E 204,714 1,245,097 7420' PA02 39° 108° 50' 14' 44" 5" T2S R97W Sec 25 SE1/4, NW1/4, SW1/4 N E 198,365 1,232,268 6560' PA03 39° 108° 50' 14' 23" 7" T2S R97W Sec 36 NE1/4, NW1/4, NW1/4 N E 196,291 1,232,079 6300' PA04 39° 108° 49' 13' 58" 11" T2S R97W Sec 26 NE/14, NE1/4, SE1/4 N E 193,651 1,236,354 6410' PA05 39° 108° 49. 14' 03" 41" T3S R97W Sec 2 NW1/4, NW1/4, SE1/4 N E 188,239 1,229,119 6410' PA06 39° 108° 48' 14' 55" 5" T3S R97W Sec 1 SW1/4, NW1/4, SW1/4 N E 187,422 1,231,954 6770* PA07 39° 108° 48' 13' 55" 57" T3S R97W Sec 1 SE1/4, NW1/4, SW1/4 N E 187,359 1,232,582 6770* Plane Coordinate Projection Tables, Colorado, Special Publication III- j^5 No. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION 39° 108° 49' 13' 18" 49" T3S R97W Sec 1 NW1/4, SE1/4, NW1/4 N E 189,685 1,233,274 6760' 39° 108° 48' 12' 53" 20" T3S R96W Sec 6 NE1/4, SW1/4, SE1/4 N E 186,920 1,240,131 6750' 39° 108° 49. 11' 30" 50" T3S R96W Sec 5 NE1/4, NW1/4, NW1/4 N E 190,634 1,242,582 6430' 39° 108° 48' 11' 41" 47" T3S R96W Sec 5 SW1/4, SE1/4, SW1/4 N E 185,662 1,242,645 6700' 39° 108° 48' 11' 47" 28" T3S R96W Sec 5 SW1/4, SW1/4, SE1/4 N E 186,228 1,244,154 6740' 39° 108° 49' 11' 33" 44" T2S R96W Sec 32 SE1/4, SW1/4, SE1/4 N E 190,885 1,243,085 6500' 39° 108° 48' 14' 22" 29" T3S R97W Sec 11 NE1/4, SW1/4, NE1/4 N E 184,091 1,229,937 6700' 39° 108° 48' 14' 21" 3" T3S R97W Sec 12 NE1/4, SW1/4, NW1/4 N E 183,902 1,232,017 6670' 39° 108° 47' 13' 56" 49" T3S R97W Sec 12 NE1/4, SE1/4, SW1/4 N E 181,325 1,233,022 6730' 39° 108° 48' 13' 35" 19" T3S R97W Sec 12 NW1/4, NE1/4, NE1/4 N E 185,285 1,235,474 6760' 39° 108° 48' 13' 31" 10" T3S R97W Sec 12 SW1/4, NE1/4, NE1/4 N E 184,782 1,236,165 6820' 39° 108° 47' 12' 50" 57" T3S R96W Sec 7 SW1/4, SW1/4, SW1/4 N E 180,697 1,237,045 6870' 39° 108° 48' 12' 4" 47" T3S R96W Sec 7 SW1/4, NE1/4, SW1/4 N E 182,017 1,237,862 6890' 39° 108° 47' 12' 46" 5" T3S R96W Sec 18 NE1/4, NE1/4, NE1/4 N E 180,068 1,241,074 6920' 39° 108° 48' 11' 16" 34" T3S R96W Sec 8 SE1/4, SE1/4, NW1/4 N E 183,085 1,243,588 6860' 39° 108° 48' 10' 38" 57" T3S R96W Sec 8 NE1/4, NE1/4, NE1/4 E E 185,222 1,246,542 6540' Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U. S. Government Printing Office. Ill- j96 ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION PA24 39° 108° 47' 10' 57" 44- T3S R96W Sec 9 NE1/4, SW1/4, SW1/4 N E 181,074 1,247,422 6330' PA25 39° 108° 48' 10' 10" 24" T3S R96W Sec 9 NE1/4, NE1/4, SW1/4 N E 182,268 1,248,994 6520' PA26 39° 108° 47' 13' 25" 39" T3S R97W Sec 13 SE1/4, SE1/4, NW1/4 N E 178,239 1,233,714 6770' PA27 39° 108° 47' 12' 22" 58" T3S R96W Sec 18 SW1/4, SW1/4, NW1/4 N E 177,862 1,236,857 6980' PA28 39° 108° 47' 12' 8" 58" T3S R96W Sec 18 NW1/4, SW1/4, SW1/4 N E 176,417 1,236,794 7010' PA29 39° 108° 46' 11' 57" 20" T3S R96W Sec 17 SW1/4, SW1/4, SE1/4 N E 175,034 1,244,405 6700' PA30 39° 108° 46' 10' 58" 48" T3S R96W Sec 16 SW1/4, SW1/4, SW1/4 N E 175,034 1,246,920 7120' PA31 39° L08° 47' 10' 46" 45" T3S R96W Sec 16 NE1/4, NW1/4, NW1/4 N E 179,374 1,247,359 6920' PA32 39° L08° 47' 10' 25" 18" T3S R96W Sec 16 SW1/4, SW1/4, NE1/4 N E 177,737 1,249,371 6640' PA33 39° L08° 46' 13' 58" 00" T3S R96W Sec 18 SW1/4, SW1/4, SW1/4 N E 175,411 1,236,605 7060' PA34 39° L08° 46' 12' 53" 5" T3S R96W Sec 19 NE1/4, NE1/4, NE1/4 N E 174,720 1,240,948 7120' PA35 39° L08° 45' 13' 21" 6" T3S R97W Sec 25 NE1/4, SE1/4, SE1/4 N E 165,537 1,235,851 7400' WATER WAOl 39° 108° 50' 13' 31" 54" T2S R97W Sec 25 SW1/4, SE1/4, SW1/4 N E 197,108 1,233,085 6300' WA02 39° .08° 50' 14' 10" 37" T2S R97W Sec 35 NE1/4, SW1/4, NE1/4 N E 195,034 1,229,685 6230' WA03 39° lC8° 48' 14' 48" 32" T3S R97W Sec 2 NE1/4, SW1/4, SE1/4 N 186,731 1,229,311 6460' Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE & _ONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION WA04 39° 108° 47' 13' 26" 35" T3S R97W Sec 13 SW1/4, SW1/4, NE1/4 N E 178,302 1,234,028 6700' WA05 39° 108° 50' 13' 4" 14" T2S R97W Sec 36 SW1/4, SE1/4, NE1/4 N E 194,217 1,236,102 6330' WA06 39° 108° 49' 12' 36" 25" T2S R96W Sec 31 SE1/4, SW1/4, SE1/4 N E 191,262 1,239,874 6360' WA07 39° 108° 49' 11' 31" 59" T3S R96W Sec 5 NW1/4, NW1/4, NW1/4 N E 190,697 1,241,891 6370' WA08 39° 108° 49' 11' 12" 8" T3S R96W Sec 5 SW1/4, SE1/4, NE1/4 N E 188,679 1,245,788 6400' WA09 39° L08° 48' 10' 10" 22" T3S R96W Sec 9 NE1/4, NE1/4, SW1/4 N E 182,268 1,249,182 6420' WAIO 39° L08° 47' 10' 25" 24" T3S R96W Sec 16 SE1/4, SE1/4, NW1/4 N E 177,800 1,248,931 6580' WA11 39° L08° 48' 11' 18" 7" T3S R96W Sec 8 SW1/4, SE1/4, NE1/4 N E 183,211 1,245,725 6550' WA12 39° L08° 46' 11' 58" 25" T3S R96W Sec 17 SW1/4, SW1/4, SE1/4 N E 175,159 1,244,028 6700' WA13 39° .08° 47' 12' 13" 34" T3S R96W Sec 18 SW1/4, NW1/4, SE1/4 N E 176,857 1,238,679 6840' WC91/WD91 WE91/WG91 39° [08° 47' 14' 48" 20" T3S R97W Sec 11 SE1/4, SE1/4, SE1/4 N ■E 180,634 1,230,571 6873.0' WC17/W017 WE17/WG17 39° [08° 46' 10' 58" 51" T3S R96W Sec 16 SW1/4, SW1/4, SW1/4 N E 175,034 1,246,668 7038.6' WDOl 39° 08° 48' 14' 52" 3" T3S R96W Sec 1 NE1/4, SW1/4, SW1/4 N E 187,045 1,232,079 6763.4' WD02 39° 08° 48' 12' 56" 22" T3S R96W Sec 6 SE1/4, NW1/4, SE1/4 N E 197,234 1,240,000 6737.0' WD11/WE11 39° .08° 48' 14' 52" 35" T3S R96W Sec 2 NW1/4, SE1/4 N E 187,171 1,229,500 6425.0' WD12/WG12 39° 08° 48' 14' 52" 36" T3S R97W Sec 2 NE1/4, SW1/4, SE1/4 N E 187,171 1,229,497 6428.8' Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES smim feNM^ TOWNSHIP & RANGE STATE COORDINATES* ELEVATION WD14/WD15 39° 108° 47' 13' 46" 41" T3S R96W Sec 7 NE1/4, SW1/4 N E 180,200 1,238,300 6909.0' WD18/WE18 WG18 39° 108° 45' 13' 19" 08" T3S R97W Sec 25 SE1/4, SE1/4 N E 165,438 1,235,125 7386.6' WD19 39° 108° 49' 31" 59" T3S R96W Sec 5 NW1/4, NW1/4, NW1/4 N E 190,760 1,241,891 6384.4' WD20/WE20 WG20 39° 108° 49' 12' 33" 24". T3S R96W Sec 31 SE1/4, SW1/4, SE1/4 N E 191,011 1,239,937 6358.0' WD21/WE21 WG21/WH21 39° 108° 48' 13' 57" 24" T3S R97W Sec 13 SE1/4, SW1/4, SE1/4 N E 175,348 1,234,782 6813.3' WD41/WE41 WG41 39° 112° 38' 10' 21" 06" T3S R96W Sec 7 NE1/4, SW1/4 N E 182,000 1,238,000 6909.0' WD51/WE51 WG51 39° 108° 47' 13' 36" 06" T3S R97W Sec 13 NE1/4, NE1/4, NE1/4 N E 180,257 1,236,291 6953.6' WD52/WE52 WG52 39° 108° 47' 12' 48" 7" T3S R96W Sec 7 SE1/4, SE1/4, SE1/4 N E 180,320 1,240,948 6903.1' WD57 39° 108° 46' 10' 47" 51" T3S R96W Sec 16 SW1/4, SW1/4, SW1/4 N E 175,034 1,246,668 7036.0' WD61/WE61 WG61 39° 108° 48' 12' 13" 32" T3S R96W Sec 7 NW1/4, NW1/4, SE1/4 N E 182,897 1,239,057 6890.7' WD90 39° 108° 47' 13' 46" 05" T3S R97W Sec 13 NE1/4, NE1/4 N E 180,312 1,236,375 6952.5' WE03 39° 108° 48' 11' 51" 29" T3S R96W Sec 5 NW1/4, SW1/4, SE1/4 N E 186,605 1,244,091 6743.1' WE04 39° 108° 47' 12' 11" 4" T3S R96W Sec 17 SE1/4, NW1/4, SW1/4 N E 176,542 1,241,074 7057.3' WI17 T3S R96W Sec 17 SE1/4 SW1/4 6994.0' WI18 39° 108° 47' 13' 46" 05" N E 180,300 1,236,375 6950.0' WI19 T3S R96W Sec 17 SE1/4 SW1/4 N E 178,394 1,243,549 6942.2' WPOl 39° 108° 49- 11' 35" 2" T2S R96W Sec 32 SE1/4, SE1/4, SE1/4 N E 190,948 1,246,291 6380' Plane Coordinat ;e Project ion Tab! es , Colorado, Special Publ ication No. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION WP02 39° 108° 49' 12' 41" 2" T2S R96W Sec 32 NW1/4, SW1/4, SW1/4 N 1,191,702 E 1,241,702 6300* WP03 39° 108° 51' 15' 03" 27" T2S R97W Sec 26 NW1/4, SW1/4, NW1/4 N 200,502 E 1,225,977 6220' WROl 40° 108° 00' 12' T1S R96W Sec 6 OFF TRACT 6140' WR02 40° 02' TIN R94W Sec 7 OFF TRACT 6347' WR03 T4S R97W Sec 34 OFF TRACT WR04 T2S R100W Sec 14 OFF TRACT WR05 T5S R94W Sec 26 OFF TRACT WR06 T6S R94W Sec 2 OFF TRACT WR07 OFF TRACT WSOl 39° 108° 49' 11' 30" 2" T3S R96W Sec 5 NE1/4, NE1/4, NE1/4 N 190,445 E 1,246,291 6380' WS02 39° 108° 48' 10' 3" 16" T3S R96W Sec 9 SW1/4, NW1/4, SE1/4 N 181,577 E 1,249,622 6540' WS03 39° 108° 49' 11' 1" 9" T3S R96W Sec 5 NW1/4, NE1/4, NE1/4 N 190,634 E 1,245,788 6360' WS04 39° 108° 48' 10' 1" 13" T3S R96W Sec 9 NE1/4, SW1/4, SE1/4 N 181,388 E 1,249,874 6550' WS06 39° 108° 50' 14' 23" 38" T2S R97W Sec 35 NE1/4, NW1/4, NE1/4 N 196,354 E 1,229,622 6260' WS07 39° L08' 50' 14' 17" 33" T2S R97W Sec 35 SW1/4, NE1/4, NE1/4 N 195,788 E 1,230,000 6280' WS08 39° 108° 48' 14' 57" 48" T3S R97W Sec 11 SE1/4, NE1/4, SE1/4 N 187,674 E 1,228,554 6400' WS09 39° .08° 47' 14' 51" 53" T3S R97W Sec 14 NW1/4, NE1/4, SW1/4 N 181,011 E 1,227,988 6550' WSIO 39° L08" 47' 15' 16" 2" T3S R97W Sec 2 SE1/4, NE1/4, SW1/4 N 177,485 E 1,227,171 6580' Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U. S. Government Printing Office. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES TOWNSHIP & RANGE ATITUDE & ONGITUDE STATE COORDINATES* ELEVATION 39° 48' 13" 08° 12' 40" 39° 50' 09" 08° 13' 12" 39° 51' 20" 08° 19' 15" 39° 49' 29" 08° 24' 56" 39° 47' 22" 08° 17' 57" 39° 46' 27" 08° 22' 43" 39° 42' 56" 08° 29' 03" 39° 47' 37" 08° 15' 51" 39° 40' 51" 08° 16' 50" 39° 44' 50" 08° 10' 05" 39° 40' 55" 08° 12' 50" 39° 47' 42" 08° 06' 09" 39° 48' 25" 08° 10' 34" 39° 47' 36" 08° 14' 59" 39° 47' 18" 08° 10' 22" 39° 47' 17" 08° 15' 03" T2S, R97W, Sec 19 SW1/4, SE1/4 T2S, R98W, Sec 32 SW1/4, SE1/4 T3S, R97W, Sec 17 NW1/4, SE1/4 T3S, R98W, Sec 22 NW1/4, SE1/4 T4S, R99W, Sec 10 NE1/4, SE1/4 T3S, R97W, Sec 27 Center T4S, R97W, Sec 21 SW1/4, SE1/4 T3S, R96W, Sec 33 SW1/4, NE1/4 T4S, R96W, Sec 19 SW1/4, SW1/4 T3S, R95W, Sec 18 NW1/4, NW1/4 T3S, R96W, Sec 9 SE1/4, NW1/4- T3S, R97W, Sec 14 NE1/4, NW1/4 T3S, R96W, Sec 16 NE1/4, SW1/4 T3S, R97W, Sec 14 NW1/4, SW1/4 N 182,900 E 1,238,400 N 194,800 E 1,236,300 OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT N 184,187 E 1,248,184 OFF TRACT OFF TRACT OFF TRACT Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U.S. Government Printing Office. * Plane Coordinate Government Print ENVIRONMENTAL DATA COLLECTION STATION ATITUDE & TOWNSHIP & RANGE ONGITUDE 39° 48' 42" 08° 10' 52" 39° 46' 10" 08° 15' 16" 39° 49' 31" 08° 10' 59" 39° 47' 20" 08° 10' 23" 39° 48' 45" 08° 10' 60" 39° 46' 57" 08° 11' 21" 39° 48' 42" 08° 11' 0 39° 47' 15" 08° 12' 34" 39° 49' 28" 08° 11' 54" 39° 49' 34" 08° 12' 27" 39° 50' 3" 08° 13' 13" 39° 50' 8" 08°13'14" 39° 47' 43" 08° 13' 39" 39° 48' 49" 08° 14' 34" 39° 50' 12" 08° 14' 36" T3S R97W Sec 22 El/4, Nl/4, El/4 T3S R97W Sec 8 SE1/4, Sl/4, El/4 T3S R96W Sec 5 NE1/4, NE1/4, NE1/4 T3S R96W Sec 16 NE1/4, NE1/4, SW1/4 T3S R96W Sec 5 SE1/4, SE1/4, SE1/4 T3S R96W Sec 17 SE1/4, SW1/4, SE1/4 T3S R96W Sec 5 SE1/4, SE1/4, SE1/4 T3S R96W Sec 18 SE1/4, NE1/4, SW1/4 T3S R96W Sec 5 NE1/4, NW1/4, NW1/4 T2S R96W Sec 31 SW1/4, SW1/4, SE1/4 T2S R97W Sec 36 SE1/4, SE1/4, NE1/4 T2S R97W Sec 36 SE1/4, NE1/4 COORDINATES STATE COORDINATES* ELEVATION N 185,500 E 1,247,000 N 170,875 E 1,225,875 OFF TRACT N 190,634 E 1,246,542 6400 N 177,234 E 1,248,931 6600 N 185,914 E 1,246,354 N 175,097 E 1,244,342 6460 6680' N 185,662 E 1,246,291 6460' N 177,045 E 1,238,742 6860' N 190,382 E 1,242,268 6380' N 191,137 E 1,239,685 6380' N 194,091 E 1,236,228 6430' T3S R97W Sec 13 NE1/4, NE1/4, NW1/4 N E 180,000 1,233,714 6660 T3S R97W Sec 2 NE1/4, SW1/4, SE1/4 N E 186,857 1,229,685 6460 T2S R97W Sec 35 NE1/4, SW1/4, NE1/4 N E 195,222 1,229,748 6280 Projection Tables, Colorado, Special Publication No. 276, U.S. ng Office. + Multiple station codes at the same location indicates samples taken at different depths. i i i - a,, - No. 276, U. S. bovernme ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE+ WU61 WVOl WV02 WV03 WV04 WV05 WV06 WV07 WV08 WV09 WV37 WV40 WW12 WW13 WW22 WW32 LATITUDE & LONGITUDE 39° 51' 3" 108° 15' 31" 39° 49' 26" 108° 16' 39" 39° 48' 35" 108° 08' 49" 39° 48' 00" 108° 05' 11" 39° 09' 19" 108° 13' 28" 39° 41 ' 53" 108° 05* 24" 39° 48' 01" 08° 12' 42" 39° 48' 01" 08° 12' 14" 39° 48' 42" 08° 13' 29" 39° 47' 46" 08° 13' 05" 39° 48' 42" 08° 13' 29" TOWNSHIP & RANGE T2S R97W Sec 27 NE1/4, SE1/4, NE1/4 T3S R97W Sec 4 T3S R96W Sec 10 T4S R96W Sec 9 T4S R95W Sec 18 T3S R96W Sec 7 NE1/4, SW1/4 T3S R96W Sec 7 NE1/4, SW1/4 T3S R97W Sec 1 SE1/4, SW1/4, SE1/4 T3S R97W Sec 1 SE1/4, SW1/4, SE1/4 T3S R97W Sec 12 STATE COORDINATES* ELEVATION N 220,502 6220' E 1,225,600 OFF TRACT 6411' OFF TRACT 6490' N 675,219 E 1,249,792 OFF TRACT N 185,565 E 1,234,236 N 188,206 E 1,233,371 N 188,055 E 1,231,357 N 181,750 E 1,238,250 N 181,750 E 1,238,125 N 185,977 . E 1,234,720 N 180,272 E 1,236,438 N 185,977 E 1,234,720 N 188,516 E 1,237,012 7420' 6794.8' 6704.1' 6692.7' 6909.0' 6909.0' 6780' 6953.6' 6764.0' 6785.0' * Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U.S. Government Printing Office. + Multiple station codes at the same location indicates samples taken at different depths. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE+ LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION WX02 39° 108° 48' 12' 56" 22" T3S R96W Sec 6 SE1/4, NW1/4, SE1/4 N E 187,234 1,240,000 6730' WX04 39° 108° 47' 12' 11" 4" T3S R96W Sec 17 SE1/4, NW1/4, SW1/4 N E 176,542 1,241,074 7040' WXIO 39° 108° 47' 13' 46" 06" T3S R97W Sec 13 NE1/4, NE1/4, NE1/4 N E 180,257 1,236,291 6950' WX12/WY12 39° 108° 48' 14' 52" 36" T3S R97W Sec 2 NE1/4, SW1/4, SE1/4 N E 187,171 1,229,497 6440' WX17/WY17 39° 108° 46' 10' 58" 51" T3S R96W Sec 16 SW1/4, SW1/4, SW1/4 N E 175,034 1,246,668 7040' WX19 39° 108° 49' 11' 31" 59" T3S R96W Sec 5 NW1/4, NW1/4, NW1/4 N E 190,760 1,241,891 6370' WX20 39° 108° 49' 12' 33" 24" T2S R96W Sec 31 SE1/4, SW1/4, SE1/4 N E 191,011 1,239,937 6350' WX21 39° 108° 48' 13' 57" 24" T3S R97W Sec 13 SE1/4, SW1/4, SE1/4 N E 175,348 1,234,782 6870' WX32 39° 108° 48' 13' 26" 36" T3S R97W Sec 12 NW1/4, SW1/4, NE1/4 N E 184,342 1,234,091 6840' WX33 39° 108° 49' 13' 0" 28" T3S R97W Sec 1 SE1/4, NW1/4, SE1/4 N E 187,800 1,234,845 6720' WX38 39° 108° 48' 12' 05" 40" T3S R96W Sec 7 NE1/4, SW1/4 N E 182,100 1,238,400 6909.0' WX41 39° 108° 49' 13' 32" 08" N E 191,000 1,236,500 6460.0' WX44/WY45 /WY46 39° 108° 48' 12' 1" 44" T3S R96W Sec 7 SW1/4, NE1/4, SW1/4 N E 181,765 1,238,114 6910' WX55/WY52 /WY54 39° 108° 47' 12* 48" 7" T3S R96W Sec 7 SE1/4, SE1/4, SE1/4 N E 180,320 1,240,948 6900' WX63/WY61 WY62 39° 108° 48' 12' 13" 32" T3S R96W Sec 7 NW1/4, NW1/4, SE1/4 N E 182,897 1,239,057 6870' * Plane Coordinate Projection Tables, Colorado, Special Publication No. 276, U.S. Government Printing Office. + Multiple station codes at the same location indicates samples taken at different depths. ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE+ LATITUDE & LONGITUDE TOWNSHIP & RANGE WX64/WY64 39° 108° 55' 13' 16" 01" WX65/WY65 39° 108° 51' 21' 36" 00" WX67/WY67 39° 108° 52' 15' 55" 42" WX69/WY69 39° 108° 53' 05' 10" 04" WX71/WY71 39° 108° 47' 21' 47" 49" T3S R98W Sec 11 WX72/WY72 39° 108° 45' 19' 40" 12" WX73 41° 108° 09' 08' 26" 15" T4S R95W Sec 32 WX74 WX75 41° 108° 08' 09' 48" 03" T5S R95W Sec 6 WX82 39° 108° 48' 10' 13" 13" WX92/WY91 39° 108° 47' 14' 48" 20" T3S R97W Sec 11 SE1/4, SE1/4, SE1/4 WYOl 39° 108° 48' 14' 52" 3" T3S R97W Sec 1 NE1/4, SW1/4, SW1/4 WY03 39° 108° 48' 11' 51" 29" T3S R96W Sec 5 NW1/4, SW1/4, SE1/4 WY44 39° 108° 48' 12' 01" 44" WY66 39° 108° 50' 16' 41" 04" T2S R97W Sec 27 WY68 39° 108° 45' 12" ecu 31" STATE COORDINATES* OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT OFF TRACT N 675,219 E 1,273,792 OFF TRACT N 671,467.4 E 1,269,951.5 N 182,562 E 1,249,938 N 180,634 E 1,230,571 N 187,045 E 1,232,079 N 186,605 E 1,244,091 N 181,772 E 1,238,125 OFF TRACT OFF TRACT ELEVATION 7178.0' 6390.0' 6740.0' 7350.0' 6580.0' 6805.0' 8142.3' 7583.2' 6909.0' 6870' 6780' 6740' 6909.0' 6286.0' 6840.0' * Plane Coordinate Projection Tables, Colorado, Special Government Printing Office. + Multiple station codes at the same location indicates depths. ill- ** U 3 Publication No 276, U.S. samples taken at different ENVIRONMENTAL DATA COLLECTION STATION COORDINATES STATION CODE+ WY70 WY71 WY72 WY75 WY76 WY77 WY78 WY79 WY81 WZOl WZ02 WZ03 LATITUDE & LONGITUDE TOWNSHIP & RANGE STATE COORDINATES* ELEVATION 39° 45' 108° 28' 108° 12' 51" 01" 58" T3S R99W T4S R96W Sec 26 Sec 6 OFF TRACT OFF TRACT 7070.0' 7145.0' 39° 45' 108° 21' 108° 25' 59" 49" 35" T3S R96W Sec 29 N 169,250 E 1,242,500 6820.0' 7020.0' 39° 45' 108° 10' 108° 10' 02" 04" 24" T3S R96W Sec 33 T3S R96W Sec 9 NE1/4, NE1/4, SW1/4 OFF TRACT N 182,457 E 1,249,057 6865.0' 6540' 41° 08' 108° 21' 108° 13' 44" 09" 20" SE1/4, NW1/4, SE1/4 N 672,812 E 1,214,479 E 1,235,461 7777.8' 6720' 39° 43' 108° 12' 53" 58" T4S R96W Sec 6 OFF TRACT 7145.0' 39° 51' 108° 25' 10" 35" T2S R98W Sec 30 OFF TRACT 7020.0' 39° 48' 108° 10' 12" 24" T3S R96W Sec 9 NE1/4, NE1/4, SW1/4 N 182,457 E 1,249,057 6540' 39° 42' 108° 13' 02" 20" T3S R96W Sec 1 NE1/4, NW1/4, SE1/4 N 188,015 E 1,235,461 6720' 39° 48' 108° 13' 28" 27" N 184,592 E 1,234,798 39° 48' 108° 13' 26" 28" N 184,306 E 1,234,705 x Plane Coordinate Projection Tables, Colorado, Special Publication No 276, U.S. Government Printing Office. + Multiple station codes at the same location indicates samples taken at different depths. COLORADO COORDINATES EAST 1 Mk &h\ s> s -_m a ' R 97 W R 96 W " WIJJ' -; n^r — -^ tfifel® — =ac^* <§^si» •* ■y-^ ' , WD90] WM^L«W0I5 &i_ *., „ \ ly \\\V' _ W a i : rf to *W INTERIM MONITORING PROGRAM July 8, 1982 (GS) Water Gaging S (AQ) Air Quality SHa] J^ Aquatic Sampling Sit PC-Piceance (jje)m« teorologicol Tower 200 V0= Open (50 x VF fenced (50x70m) Vegetation Site Micrenvionmental Stations Well Hole Locations %/// Deer Pellet and Browse Utilization fran I 5.1 Brush Beating Project: Vegetation Analysis Vegetation sampling consisted of sampling herbaceous species for species frequency and annual production. Sampling was done along randomly located transect lines, one each in both gulches where beating occurred and one control transect (no brush beating). Each transect consisted of sampling 25 one-square-meter quadrats. Frequency was determined for individual species encountered at each site. Mean annual production was determined for individual species as well as entire sites. Production was determined using a double sampling approach. The data and results are listed in Tables 5.1-1 through 5.1-10. Mean herbaceous production for the brush beating sites was well above that of the control area. However, the difference between the beating sites and the control site was not as much in 1982 as the past two years (all sites had higher production values in 1982). Mean herbaceous production in nidi and Gulch was 69.38 g/m2 (619 lbs/acre), Gardenhire Gulch production was 68.76 g/m2 (613 lbs/acre), and in the Control site production was 38.38 g/m2 (339 lbs/acre). Species frequency was similar for both the beating sites and the control site. 5.2 Excess Mine Water Disposal - Land Application System Impacts The sprinkler-irrigation system which was used to dispose of excess mine water during the late spring, summer and early fall of 1980 and 1981 was not used during 1982. However, the concentration and build-up of salts and specific ions in the soils and vegetation from the applied water of the two previous years does not necessarily disappear once irrigation ceases. Therefore, a chemical analysis of the soils and vegetation was conducted in October, 1982 (end of the growing season) in order to determine the concentration levels of salts and ions in the soils and vegetation one year following irrigation. Vegetation and soil samples were taken from the same treatment areas, were analyzed using the same methods, similar sampling period, and were analyzed for the same parameters as the two previous years. Soil Chemical Properties conductivity (ECe) exchanc depth, determir concen.. _ soils one year after irrigation has stopped, three questions were asked: 1) Are 1982 levels less than levels that could be considered toxic to plant growth? Ill- <+G7 OO CM CT> 10 r»- cvj E a E rt3 >> Z3 C JS >> >1 >1 CL CL Cl E o o o ro S- Cl E Cl 3 fO Cl c i_ O ZJ c ;z bj ■C o OJ r- -^ Cl i/i QJ "0 E O 1/1 3 .-a c 3 S- > QJ OJ 3 OJ 2 l V- Q. ■a -cr c C 3 LO E O fO CD E rrj a. ZJ 3 Z3 <~> o s, i >> a. -a >i CLI i_ LU UJ — i Z --' a. O r— U o ■•- 3 <_ ■a (U c c CL >> o u u OJ 3 o -a o nj i. -C o CL CL 01 U") v^> I II- 404 .— t IT) t-t CO .—I CsJ LO r-t .— t C\J LO r-H qi 01 oi q i. c £ 3: a ^ i ^ T3 ra JZ >i CL ai -c: Q. i- l/l o c 10 CX o rol ra cL Z3 U o c Q. N D. Tn >i cl _j _" b CO ^O r-H CTl IS c u -o > en o ■o Z3 t- r— D , .L --, .,_ -a % c E O JZ Q. c 3 c O. O) Cl OJ * E t_ CL O >i E OD "O 3 CD Ti >l T3 c E l_ on E -C O 3 o c: Q. Q. o o 3 a O - o Q. lU ,'i: £ J 3 E -Q 3 3 ■c O ■»-> c OJ cr O n_ O 3 1 <- F TABLE 5.1-4 Oven dry weight (grams) for Oldland Gulch brush beating area. 1982 Species Agropyron cristatum Agropyron dasystachyum Agropyron intermedium Agropyron smith ii Artemisia ludoviciana Bromus tectorum Chenopodium album Collinsia parviflora Descurainia pinnata Drab a spp. Elymus cinereus Elymus junceus Erysimum asperum Lappula redowskii Medicago sativa Oryzopsis hymenoides Poa spp. Sitanion hystrix Sphaeralcea coccinea Sporobolus cryptandrus Stipa comata Tragopogan dubius Quadrat Numbers 13 1766 24.03 19.21 0.07 0.04 12.25 0.77 0.04 32.32 16 24 "3U38" 20.52 0.96 2.30 80.26 3.03 0.19 0.03 0.03 1.89 36.49 0.85 5.33 0.33 15.08 11.35 47.69 0.58 0.02 7.95 6.53 15.10 6.26 22.02 TOTAL BIOMASS 83.54 71.32 92.39 62.31 97.54 TABLE 5.1-5 Oven dry weight (grams/m^) for Gardenhire Gulch brush beating area. 1982 Species Agropyron cristatum Agropyron dasystachyum Agropyron smithii Agropyron trachycaulum Artemisia frigida Aster spp. Bouteloua gracilis Bromus inermis Quadrat Numbers "47^5" 7.15 3.49 0.48 33.31 0.02 0.05 11 19 Bromus tectorum Salsola ^escurainia pinnata Or aba spp. Erysimum asperum Kochia spp. Lappula redowskii Medicago sativa Oryzopsis hymenoides Sitanion hystrix Sporobolus cryptandrus Stipa comata TOTAL BIOMASS 55.17 0.02 0.02 35.22 7.44 95.84 5.26 0.02 0.02 12.59 10.53 3.17 52.33 11.48 9.43 5.44 32.59 11.47 8.46 90.43 121.17 100.95 78.68 52.52 TABLE 5.1- Oven dry weight (grams/nr) for Brush Beating Control Area. 1982 Species Quadrat Numbers Agropyron smithii Artemisia frigida Artemisia ludoviciana Astragalus spp. Bouteloua gracilis Bromus tectorum Chenopodium album Descurainia pinnata Erysimum asperum Lappula redowskii pjryzopsis hymenoides Senecio multilobatus Sitanion hystrix Sporobolus cryptandrus Stipa comata Tragopogan dubius 4.08 0.04 4.77 13.22 23.41 3.04 0.02 0.22 1.88 0.04 3.58 0.56 55.27 12.64 0.04 0.02 22.58 0.24 1.53 6.60 14.27 TOTAL BIOMASS 22.11 32.19 55.83 35.28 22.64 Agropyron cristatum y = 0.79x - 3.13 Agropyron Dasystachyum y = 0.64x - 3.24 Agropyron intermedium y = 0.70x - U.bb Agropyron smithii y = 0.67x - 5.79 Artemisia frigida y = 0.24x + 0.03 Bouteloua gracilis .y = 0.52x - 0.57 Bromus tectorum y = 1.17x - 1.19 Chenopodium album Uescurainia pinnata y = 0.21x + 0.01 Elymus junceus y = 0.20x + 6.49 Erysimum asperum y = 0.79x - 1.6b Lappula redowskii Oryzopsis hymenoides y = 0.59x + 1.24 Stipa comata y = 0.61x + 0.2b TABLE 5.1-7 Regression Equations for converting fresh weight estimates to oven dry weights for Brush Beating and Control Areas. 1982 Species Regression Equation Correlation Coefficient 0.99 0.99 1.00 0.98 0.99 1.00 0.92 0.99 0.61 0.99 0.98 0.88 Due to insufficient data for some species, it is not possible to calculate regression equations for those species, therefore, the following applies for converting fresh /• estimated weights to oven dry weights: \J • Artemisia frigida and A. ludoviciana data were pooled together to calculate a regression equation for both species. This was also done for Elymus cinereus and E. junceus. • The regression equation for Descurainia pinnata was used as a conversion for Chenopodium album, Collinsia parviflora, Kochia spp, and Lappula redowskii. • The regression equation for Agropyron cristatum was used as a conversion for Sitanion hystrix. • The regression equation for Artemisia frigida was used as a conversion for Aster spp., Medicago sativa, Astragalus spp., Senecio multi lobatus, Sphaeralcea coccinea, and Tragapogon dubiusT" • The regression equation for Bromus tectorum was used as a conversion for Poa spp. t The regression equation for Stipa comata was used as a conversion for Bromus inermis. • The regression equation for Oryzopsis hymenoides was used as a conversion for sporobolus cryptandrus. • The regression equation for Erysimum asperum was used as a conversion for Draba spp. TABLE 5.1- Mean production +_ the standard error of the mean (S.E.), frequency, and range of observed values for quadrats in Oldland Brush Beating Area, 1982. Based on data derived from regression equations. Production values in grams/meter^. Species Mean + S.E. Sample Size Frequency (%) Range of Values Agropyron cristatum Agropyron dasystachyum Agropyron intermedium Agropyron smithii Artemisia ludoviciana Bromus tectorum Chenopodium album Col 1 ins i a parviflora Descurainia pinnata Draba spp. Elymus cinereus Elymus junceus Erysimum asperum Lappula redowskii Medicago sativa Oryzopsis hymenoides Poa spp. Sitanion hystrix Sphaeralcea coccinea Sporobolus cryptandrus Stipa comata Tragopogon dubius TOTAL 8.62 + 2.87 25 1.46 + 1.46 25 2.46 + 1.07 25 23.65 + 5.37 25 0.36 + 0.19 25 9.96 + 2.32 25 0.005 + 0.003 25 0.017 + 0.017 25 0.09 + 0.05 25 0.12 + 0.12 25 0.93 + 0.64 25 2.46 + 0.84 25 0.80 + 0.60 25 0.04 + 0.03 25 0.03 + 0.03 25 11.57 + 3.23 25 0.046 + 0.046 25 0.001 + 0.001 25 0.03 + 0.03 25 0.05 + 0.05 25 6.64 + 3.27 25 0.04 + 0.04 25 69.38 + 3.30 25 52 0 - 47.62 8 0 - 36.44 28 0 - 20.52 76 0 - 84.43 20 0 - 3.87 96 0 - 39.61 12 0 - 0.07 4 0 - 0.43 36 0 - 1.05 8 0 - 3.08 8 0 - 12.23 28 0 - 14.07 32 0 - 14.88 24 0 - 0.64 4 0 - 0.75 56 0 - 51.10 4 0 - 1.15 4 0 - 0.03 4 0 - 1.18 4 0 - 0.03 24 0 - 62.18 4 0 - 0.99 37.30 - 115.43 Number of Species Air 5.36 + 0.28 3 - 9 TABLE 5.1-9 Mean production _+ the standard error of the mean (S.E.)t frequency, and range of observed values for quadrats in Gardenhire Gulch Brush Beating Area, 1982. Based on data derived from regression equations. Production values in grams/meter^. Species Mean + S.E. Sample Size Frequency (%) Range of Values Agropyron cristatum Agropyron dasystachyum Agropyron smithii Agropyron trachycaulum Artemisia frigida Artemisia ludoviciana Aster spp. Bouteloua gracilis Bromus inermis Bromus tectorum Chenopodium album Descurainia pinnata Oraba_ spp. -Erysimum asperum Kochia spp. Lappula redowskii Medicago sativa Oryzopsis hymenoides Sitanion hystrix Sporobolus cryptandrus Stipa comata TOTAL 5.40 + 2.16 25 0.59 + 0.41 25 19.35 + 5.41 25 2.09 + 2.09 25 1.38 + 0.61 25 0.09 + 0.09 25 0.03 + 0.02 25 0.33 + 0.23 25 0.24 + 0.17 25 18.11 + 3.16 25 0.017 + 0.017 25 0.15 + 0.12 25 0.59 + 0.51 25 0.84 + 0.44 25 0.013 + 0.009 25 0.018 + 0.012 25 0.18 + 0.12 25 7.29 + 2.13 25 0.03 + 0.03 25 0.50 + 0.50 25 11.51 + 3.53 25 68.76 + 4.70 25 28 8 70 4 20 4 96 4 28 8 36 24 16 8 52 4 4 48 100 0 - 42.86 0 - 8.28 0 - 90.44 0 - 52.33 0 - 11.55 0 - 2.19 0 - 0.51 0 - 5.73 0 - 3.91 0 - 54.77 0 - 0.43 0 - 3.11 0 - 12.56 0 - 6.22 0 - 0.22 0 - 0.22 0 - 2.43 0 - 38.04 0 - 0.82 0 - 12.59 0 - 63.39 21.69 _ 122.% Number of Species/m2 0.26 i i i - <+ i - TABLE 5.1-10 Mean production _+ the standard error of the mean (S.E.), frequency, and range of observed values for quadrats in the Control Area (for comparison to brush beating areas), 1982. Based on data derived from regression equations. Production in grams/meter2. Species Mean + S.E. Sample Size Frequency [%) Rai rige of \/al ues 0 - 71.07 0 - 2.91 0 - 3.39 0 - 0.51 0 - 3.10 0 - 18.63 0 - 0.02 0 - 0.43 o - 7.00 o - 0.04 o - 57.63 0 - 0.99 0 - 2.40 0 - 5.96 0 - 39.11 0 - 0.75 Agropyron smithii 13.90 + 4.23 Artemisia frigida 0.27 + 0.15 Artemisia ludoviciana 0.50 0.02 + 0.21 Astragalus spp. 0.02 Bouteloua gracilis 0.24 + 0.14 Bromus tectorum 4.19 + 1.03 Chenopodium album 0.002 + 0.002 Descurainia pinnata 0.03 0.55 + 0.02 Erysimum asperum 0.35 Lappula redowskii 0.003 + 0.002 Oryzopsis hymenoides 11.62 0.04 0.10 + + + 2.88 Senecio multilobatus 0.04 Sitanion hystrix 0.09 Sporobolus cryptandrus 0.41 6.16 + + 0.29 Stipa comata 2.37 Tragopogon dubius 0.03 + 0.03 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 60 16 20 4 16 92 8 36 12 12 64 4 12 8 36 4 TOTAL 38.08 + 3.53 100 5.98 - 78.54 Number of Species/m2 4.04 + 0.30 TABLE 5.2-1 Values of pH and electrical conductivity (ECe) from soils samples taken June and December 1980, October 1981 and October 1982. Treatment # Depth PH ECe and Interval ( log [H] ) ( mmhos / cm ) Replication # in Feet June Dec Oct' 81 Oct' 82 June Dec 3ct'81 Oct '82 5a 1 0-1 8.0 8.3 8.6 7.8 0.6 0.9 1.9 1.6 1-2 7.9 - - 8.7 7.9 0.8 - - 1.0 1.5 5a 2 0-1 7.8 8.4 8.5 8.2 0.9 1.1 2.2 1.4 1-2 7.7 - - 8.3 8.0 1.0 - - 1.8 1.4 5a 3 0-1 7.6 8.5 8.7 8.0 1.2 1.1 1.8 1.8 1-1.5 8.0 - - 8.6 7.9 1.0 1.4 1.7 1.5 5a 4 0-1 7.5 8.2 8.8 8.0 1,0 1.4 1.7 1.9 1-2 8.0 - " - " 7.9 0.5 - ~ - ~ 1.1 5b 1 0-1 7.9 8.2 8.5 7.9 0.6 0.8 1.3 1.2 1-2 7.7 - - 8.4 7.9 0.8 - - 0.8 1.2 2-2.5 8.2 - - 8.4 7.9 0.6 - - - - 0.96 5b 2 0-1 7.5 8.5 8.7 7.9 1.4 1.0 1.31 1.6 1-2 - - - - 8.2 8.1 - - - - 1.2 1.5 5b 3 0-1 7.9 8.3 8.8 8.1 0.9 0.7 1.1 1.6 1-2 7.9 - - 8.5 7.7 0.7 - - 0.8 1.4 2-2.5 7.7 - - - - 7.6 1.0 - - - - 1.3 5b 4 0-1 7.8 8.2 8.7 8.1 0.5 0.7 1.1 1.2 1-2 7.9 - - 8.5 7.8 0.6 - - 0.7 1.0 2-2.5 8.3 - ~ - ~ 7.6 0.6 - " - ~ 0.84 5c 1 0-1 7.5 8.3 8.7 8.1 0.4 1.0 0.7 0.70 1-2 7.8 - - 8.3 7.4 0.4 - - 0 7 0.56 5c 2 0-1 6.9 8.1 8.6 7.9 0.4 0.5 0 9 1.1 1-2 7.6 - - 8.2 7.7 0.3 - - 0 8 0.58 5c 3 0-1 7.3 8.0 8.2 8.0 0.5 0.4 0 8 0.74 1-2 7.8 - - 8.4 7.8 0.4 - - 1 0 0.78 5c 4 0-1 7.5 8.3 8.4 8.0 0.4 2.2 0 8 0.74 1-2 7.9 " " 8.4 7.9 0.4 "" 0 7 0.69 TABLE 5.2-1 Values of pH and electrical conductivity (tCe) (Continued) Treatment # Depth pH ECe and Interval ( log [H] ) ( mmhos / cm ) Replication # in Feet June Dec Oct'81 Oct'82 June Dec Oct'81 Oct'82 7c 1 0-1 1-1.5 7.9 7.7 8.7 8.6 8.6 8.0 7.8 0.4 0.5 0.5 1.0 1.1 0.92 0.74 7c 2 0-1 1-1.5 7.7 7.7 _ _ 8.6 8.0 7.7 0.5 0.8 _ _ 0.9 1.3 3.4 7c 3 0-1 1-2 7.7 8.5 _ _ 8.6 7.7 7.8 0.8 1.7 - " 1.0 7.2 9.2 7c 4 0-1 . 1-2 8.3 8.6 8.4 8.9 8.1 7.6 0.7 1.5 0.5 0.9 1.4 1.2 Control 1 0-1 8.0 7.7 0.5 0.86 Control 2 0-1 1-2 7.7 8.0 7.6 7.6 - - 0.8 0.4 0.66 0.56 Control 3 0-1 1-2 - - - - 7.9 8.2 7.4 7.5 - - 0.7 0.3 0.56 0.52 Control 4 0-1 1-2 8.0 8.5 7.5 7.6 1.1 0.7 0.54 0.42 TABLE 5.2-2 Values of exchangeable sod ium percentage (ESP), and boron ( ppm) from soils samples taken J une and Decembe r 1980 , Octob er 1981, and October 1982. Treatment § Depth ESP B oron and Interval (%) ( ppm) Replication # in Feet June Dec Oct'81 Oct' 82 June Dec Oct'81 Oct' 82 5a 1 0-1 <1 6 14 17 0.38 0.41 0.3 1.4 1-2 <1 -- 5 12 0.50 — 0.1 1.1 5a 2 0-1 <1 7 13 16 0.74 0.47 * 2.9 1-2 <1 -- 8 13 0.74 — * 1.5 5a 3 0-1 <1 11 15 12 1.04 0.46 * 2.0 1-1.5 <1 -- 15 12 0.63 — * 1.1 5a 4 0-1 <1 8 9 12 1.00 2.16 * 2.1 1-2 <1 -- -- 7.9 0.50 -- -- 1.3 5b 1 0-1 <1 8 11 15 0.52 0.19 2.0 1-2 <1 — 4 13 0.57 -- 0.1 0.6 2-2.5 <1 — 3 12 0.34 — 0.1 0.8 5b 2 0-1 <1 8 11 66 2.01 0.86 -- 2.5 1-2 -- — 2 15 1.5 5b 3 0-1 <1 5 9 16 1.20 0.17 * 2.2 1-2 <1 — 4 5.6 0.62 — 0.1 1.4 2-2.5 <1 — — 2.0 1.36 -- -- 1.5 5b 4 0-1 <1 3 9 15 0.51 0.16 0.3 1.9 1-2 <1 — 2 10 0.67 -- 0.1 1.1 2-2.5 <1 -- -- 6.0 0.55 -- -- 0.9 5c 1 0-1 <1 10 7 8.3 0.28 1.63 <0.1 0.7 1-2 <1 — 3 2.2 0.23 -- <0.1 0 4 5c 2 0-1 <1 2 7 12 0.44 0.10 0.2 1 5 1-2 <1 — 2 3.8 0.27 -- 0.1 0 6 5c 3 0-1 <1 3 6 7.8 0.39 0.08 1.0 0 8 1-2 <1 -- 3 3.2 0.29 -- 0.2 0 6 5c 4 0-1 <1 8 7 9.1 0.20 1.37 0.2 0 8 1-2 <1 -- 1 4-5 0.24 "" <0.1 0 6 [II- +2 0 TABLE 5.2-2 Values of exchangeable sodium percentage (ESP), and boron (ppm) from soil samples. (Continued) Treatment # and Replication # Depth Interval in Feet June Dec ESP {%) Oct'81 Oct' 82 June Boron (ppm) Dec Oct'81 Oct' 82 7c 1 0-1 1-1.5 <1 <1 7 7 3 7.8 5.2 0.54 0.62 0.33 0.7 0.4 0.8 0.7 7c 2 0-1 1-1.5 <1 <1 — 5 9.1 12 0.57 0.78 -- 0.7 1.5 2.8 7c 3 0-1 1-2 <1 15 — 6 8.4 25 0.74 4.43 -- 0.9 3.6 5.7 7c 4 0-1 1-2 4 12 2 8 14 7.2 0.80 1.44 0.10 ~~ 1.6 1.2 Control 1 0-1 - - <1 5.4 -- -- <0.1 1.1 Control 2 0-1 1-2 — - <1 <1 3.9 1.4 " -- <0.1 <0.1 1.2 0.9 Control 3 0-1 1-2 — -- 1 <1 1.2 1.4 — -- <0.1 <0.1 0.3 0.8 Control 4 0-1 1-2 — - 6 3 1.9 1.1 " -- <0.1 < 0.1 0.5 1.1 Colored extract could not analyze for boron. Ill- Soil toxicity levels for each parameter are listed in Table 5.2-3. 2) Are 1982 levels less than 1981 levels? Since irrigation has ceased for a year, the levels would be expected to decrease. 3) Is there a difference between the 1982 levels of the treatment plots and the control plots? When treatment areas are compared to control areas for the same year some control over the environmental variability (such as climatic conditions) is achieved. When post-treatment levels are compared to pre-treatment levels there is no control over environmental variability. No comparison of post-irrigation to pre-i rrigation levels was done. The 1982 levels which were significantly less than toxic levels, significantly less than 1981 levels, and treatment levels which were significantly different from control levels are presented in Table 5.2-4. Results of the soil sample analysis are as follows: -pH: The 1982 levels for all treatments are significantly less than the level which may impede plant growth (9.0). The 1982 levels are also significantly less than 1981 levels. The 1982 treatment levels generally are significantly different (higher) than 1982 control levels. -ECe: The 1982 levels for all treatments, with the exception of Treatment #7c, are significantly less than the level which may cause a slight yield reduction in the more sensitive forage crops (2.0 mmhos/cm). None of the 1982 levels are significantly less than the 1981 levels, in fact, in most cases there is a slight increase in the ECe from '81 to '82. Treatments 5a, 5b, and 7c are significantly different (higher) than the control area for the same depth intervals. Treatment 5c is not significantly different. -ESP The 1982 levels are significantly less than the level considered to be at the range at which moderately tolerant crops can grow with little or no loss in production (20%). The 1982 levels are the highest recorded of four sampling periods. All treatments are significantly different (higher) than the control area. -Boron: The 1982 levels, with the exception of the top foot from treatments 5a and 5b and both depths of treatment 7c, are significantly less than the level which can cause damage to sensitive crops (2.0 ppm). The 1982 levels are the highest recorded. About half the treatments and depths are not significantly different than the control area. Chemistry of the Vegetation The specific ions which are of concern in the vegetation and were analyzed are fluoride (F), boron (B), and sodium (Na). Three species of vegetation were sampled, including indian ricegrass (Qryzopsis hymenoides), western wheatgrass (Agropyron smithi i ) , and big sagebrush (Artemisia tridentata). The 1982 foliar concentrations of F, B, and Na for each of these species are listed in Tables 5.2-5 through 5.2-7; comparisons with 1980 and 1981 are given in Tables 5.2-8 to -10. Here, as with the soils, three questions were asked about the 1982 data concerning the ion concentration levels in the foliage following irrigation: 1) Are 1982 concentrations less than concentrations that might be considered toxic for plant and/or toxic to herbivores grazing in the area? 2) Are 1982 concentrations different than 1981 concentrations? With the vegetation we are interested in knowing if the ion concentrations have increased or decreased from the previous year. [Xi- i TABLE 5.2-3 Soil toxicity levels for pH, electrical conductivity (Ece), Boron, and exchangeable sodium percentage (ESP). -pH: Soil pH less than 9.0 is considered suitable for plant growth. A pH greater than 9.0 may impede plant growth (Buckman, H.O., and N.C. Brady. 1969. The Nature and Properties of Soils. Macmillan Co., New York, N.Y. 653p.). — ECe: ECe of less than or equal to 2.0 mmhos/cm may cause a slight yield reduction only in the more sensitive forage crops (Mass, E.V. and G.J. Hoffman. 1977. . Crop Salt Tolerance--Current Assessment. J. Irrig. and Drainage Div., Amer. Soc. Civil Engr. 00: 115-134). Therefore the limit for ECe of this report is 2.0 mmhos/cm. —Boron: Boron concentrations greater than or equal to 2.0 ppm can cause damage to sensitive crops (Maas and Hoffman, 1977) . — ESP: Moderately tolerant crops can grow with little or no loss in production in soils which have an ESP of 20-40. This is also the level where physical structure of the soils are too poor for good crop production (Ayers, R.S. and D.W. Westcot. 1976. Water Quality for Agriculture. Irrigation and Drainage Paper No. 29. Food and Agriculture Organ- ization of the U.N. Publication. 97p.). Therefore the toxicity limit for ESP is set at 20%. .,_ 5- -o (U O -O to o +-> CO ( ) r— o CO r-t d d oo vx> o d oo CO CM CT> r-H ,-H O O co <—* o o i— t KO 00 «-h d d m oi \ IT) O r-^ oo co *£) evi i— I C\J O O <-H CT> CTl d d r-t CO CO <— I VO 0O r-H I— I (O 1 — <— >> oo oo co CO CO H i — r^ oo CO 00 CO o co d TABLE 5.2-5 Foliar concentration of Boron, Sodium, and Fluoride in Indian ricegrass (Oryzopsis hymenoides). October, 1982. Treatment and Repl ication Boron (ppm) Sodium (ppm) Fluoride (ppm) 5b 1 29 860 <20 2 11 430 <20 3 40 110 <20 4 27 990 <20 5 42 2000 <20 6b 1 31 2200 <20 2 25 540 <20 3 28 3800 <20 4 11 2200 <20 5 Environmental Protection Agency (EPA) Ed Baker - Cathedral Bluffs Shale Oil Co. (CB) OSO > Air Pollution Control Division (APCO) George Fosdick, Cathedral Bluffs Shale Oil Co. 0. C. Slawson, Rio Blanco Oil Shale Project James Taylor, USGS, Denver J. H. Birman, Geothermal Surveys, Inc. Gale Kraft, Cathedral Bluffs Shale Oil Co. NOTE: Reference to original reports previous to the Development Monitoring Report #7 are in the Technical Library. 1 1, 2, 3 2 2 3 1, 2, 3 4 2 5 1, 2, 3 6 1, 2, 3 7 1 8 1 ginal 1, 2, 3