GENERAL40898

• Permit No: M1999002
• IBM Index Class Name: General Documents
• Doc Date: 7/22/1999
• Doc Name: FINAL ENVIRONMENTAL IMPACT STATEMENT VOL 1 CHAPTER 5 AND 6
• Media Type: D
• Archive: No

•
TABLE 3.3-1 (modified)
PICEANCE CREEK
USGS WATER QUALITY RECORDS, DECEMBER 1985 TO SEPTEMBER 1998
Standards Below Rlo Blanco 08306007 Below Ryan Gulch 09306200 At yyhlte Rlver 09306222

Parameter'
Aquatic
Llfe-Acute Aquade
Life -
Chronic

Agricultural Number
of
samples

Range

Mean' Number
of
eamplea

Range

Mean' Number
of
samples

Range

Mean
S ecificConductance(uS/cm) 69 753-1410 1150 53 872.2180 1560 58 707-4740 2040
pH (standard units) 49 8.8.8 8.37 48 8.1.8.8 8.41 37 8.1-8.8 8.54
Tem rature (C) 32 0.19.3 8.4 16 4.6-21.2 11.7 32 -28.6 12
Dissolved Oxygen 49 6.8-14.5 10 47 6.0-IS 10 33 7.3-13.8 9.5
Hardness (mg/Iaz CaC03) 49 230.490 406 48 270-700 522 36 310.620 475
Dissolved Calcium 49 49-93 79 48 47-93 80 36 28-83 62.1
Dissolved Magnesium 49 27-63 50.6 46 37.120 77.4 36 40-110 76.9
Dissolved Sodium 49 67-140 114 48 73.310 170 36 104-1000 352
Dissolved Potassium 49 1.6-5.3 2.7 48 1.9-3.9 2.81 36 2.1-6 3.28
Alkalinity 27 214-445 369 28 273-706 478 20 271-1920 849
Dissolved Sulfate 49 150-330 255 48 200.570 395 36 230-770 409
Dissolved Chloride 49 8.6-28 i7.8 48 b.b-32 ]7.6 36 10-]9D 53.2
Dissolved Fluoride 49 0.39-I.1 0.72 46 0.39-I.I 0.67 36 0.47-2.8 1.09
Dissolved Silica 49 8.4-16 14 48 11.0-19 15.7 36 4.6-18 14.1
Total Dissolved Solids 49 481-906 754 48 575-1520 1040 36 685-3130 1420
Dissolved Nitrite 10 47 <0.01-0.04 0.01 44 <0.01-0.03 0.01 22 <0.01-0.03 0.01
Dissolved Nitrate+Nitrite 44 <0.05-2.8 0.8 41 <0.05-2.6 0.72 22 <0.05.2.6 0.85
Dissolved Ammonia 47 <0.01-0.21 0.04 45 <0.01-0.69 0.05 22 <0.015.0.2 0.06
Dissolved Onho hos hale 41 <0.01-0.21 0.04 45 <0.01-0.18 0.05 23 0.02-O.I2 0.07
Dissolved Arsenic (ug/I) 360 150 100 25 I.0-3 2.04 24 <I-4 2.35 16 2.0-5 2.81
Dissolved Barium (ug/I) ~ 25 70-140 102 24 SO.12D 82 16 50.200 99.6
Dissolved Boron (ug/I) 750 48 68-240 ] 65 43 50-770 197 35 97-870 305
Dissolved Cobalt (ug/I) IB <I-I 0.75 24 <I.2 0.79 16 <1-2 0.69
Dissolved Iron (ug/I) 1000 25 <3-38 13.5 24 <3-29 12.6 16 <3-460 38
Dissolved Lithium (ug/I) 25 10.0-22 14.7 24 <I-22 13.3 16 14-100 30.8
Dissolved Manganese (ugll) 90301°) 3100[°) 200 25 7-230 79.2 24 <3-210 53.7 16 >3-90 16.6
Dissolved Molybdenum (ug/I) 25 c4-8.8 5.3 24 <I-11 6.1 16 5.0-12 7.71
Dissolved Nickel(ug/q 2640141 2731°) 200 25 <I-3 0.94 24 <I.5 1.42 16 <I-4 1.45
Dissolved Strontium (ug/p 48 730-2000 1560 47 1300.3900 2790 35 1200-3200 2360
Dissolved Zinc(ug/I) 37014[ 3381°) 2000 23 <3-12~ 5.72 24 <3-19 7.3 16 <3-IS 7.19
'Ali unlle in mpe. sacepl where iMraletl
~Cobretlo Ambient Water ~ualiry Stentlartle
One-hetl IM tlslechon limit Ip non-0etsd values ueetl fw Ne nalaletion al msena
°Stentlartl is hartlneee tlspM6en1, value Gwen beeeC on herdroae oIIW myllmaxenum herMeu beestl geMertl)
Sheet I of I