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

! i !
TABLE 3.3-2 (modified)
PARACHUTE CREEK
USGS WATER QUALITY RECORDS, NOVEMBER 1974 to OCTOBER 1982'
Standards Near Parachute 09093000 At Parachute 09093500

Paramatet~
Aquatic
Life-Acute Aquatic
Life -
Chronic

Agrlcullural Number
of
samples

Range

Mean' Number
of
samples

Range

Mean'
Specific Conductance (uS/cm) 54 435-1000 743 69 520-2300 1240
pH (standard units) 54 7.2-9.2 8.18 69 7.4-8.9 8.13
Temperature (C) 54 0-20.5 8.5 69 0-21.5 10.1
Dissolved Oxygen 53 7.8-13 9,8 65 7.4.12.4 10
Hardness (mg/I as CaC03) 52 200-370 295 69 210-820 480
Dissolved Calcium 52 45-74 57,1 69 49-160 88.9
Dissolved Magnesium 52 IS-50 37 69 19-100 62.3
Dissolved Sodium 52 29-120 62.2 69 38-280 118
Dissolved Potassium 52 1.2-4 2.53 69 i.9-8.7 3.95
Dissolved Sulfate ~ 53 39-200 117 69 64.800 326
Dissolved Chloride 53 2.1-160 11.1 69 4.2-49 15.3
Dissolved Fluoride 53 0.2-0.9 0.57 69 0.3-3.7 0.82
Dissolved Silica 53 8.0-20 16.5 67 14-23 17.7
Total Dissolved Solids SI 288-628 478 69 333-1640 849
Total Suspended Solids 4 3.0-49 18.5 NR NR NR
Dissolved Nitrate+Nitrite 50 0.41-2 1 7 0.18-I.6 0.68
Dissolved Ammonia 49 <0.01-O.I3 0.03 7 0.01-0.11 0.06
Dissolved Phosphorous 49 <0.01-3.2 0.18 7 0.01-0.4 0.1
Dissolved Orthophos hate 2 0.05-0.06 0.06 53 <0.01-0.28 0.04
Dissolved Arsenic (ug/I) 360 150 100 33 2.0.5 3.58 63 <1-14 3.5
Dissolved Barium (ug/I) 20 30-100 60.6 55 50.500 95.9
Dissolved Beryllium (ug/I) 17 <1-10 3.32 1 I I
Dissolved Boron (ug/I) 750 53 30-160 98.1 65 <20-410 150
Dissolved Cadmium (ug/I) 41.9151 2.8715' 10 I1 I.0-3 1.36 39 <I-8 I.58
Dissolved Cobalt (ug/1) ~ 8 <3-5 2.06 4 c3 1.5
Dissolved Copper (ug/I) 62.915' 37.115) 200 IS 1.0-10 2.13 48 <!-7 2.16
Dissolved Iron (ug/I) 1000 54 <IO-180 22.7 65 <3-I80 24.8
Dissolved Lead (ug/1) 541151 16.315> 100 13 <2-45 9.46 44 Q-63 8.95
Dissolved Lithium (ug/I) 18 <4-40 19.9 55 <IO-70 37.8
Dissolved Manganese (ug/I) 9030151 3100151 200 34 <I-20 5.33 63 1.0-60 21.4
Dissolved Molybdenum (ug/I) 17 5.0-30 I5, I 5 15-40 26.8
Sheet I oft