PERMFILE68811

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TAB 7 HYDROLOGY PART 1
• Media Type: D
• Archive: Yes

• • •
Table 7-4, Mater puality Standards for Mater Use 1n Colorado.
(Ya lue given 7s the maalemn allowed, unless otherwise specif led)
Nat tonal (U.S. Environmental Protect ion Agency Proposed Colorado-Meter-puallty Standards
1976x; 1976b; 1977) end proposed Colorado (Colorado Department of Hee lth, 19776)

Mater puallty Var table (Colorado Department of Health, 1977x)
Drink ing Mater Reguletlons
Meter SuDplyl
Agr lculture2
PHYSICOCHEMICAL VARIABLES
Temperature (°C.) --
3 ---
4 ---
pH (Standard Units) 6.5 ph 8.5 5.0 pH 9.0 ---
Dissolved Oxygen mg/1
MAJOR INORGANIC CONSTITUENTS ~(mg/1)
Magnesium ---
~ 3250 125
250 ~ ---
Chloride
5
6
6 ---
-
Flurlde ,
4-2.4
510 1.4-2.4
]0 --
71
Mitrate (as N) ~
3250
250 00
Sulfate
11d
S
3500 ~ ---
Total Dissolved
o
s --- ___
TRACE ELEMENTS (ug/1)
Aluminum __
550 ___
0 -__
1
Arsenic
Barium
51,000 5
1,000 00
Bery111um --- --- 100
Boron --
510 ---
10 750
1
Cadmium
55 0
l
Chromium 0
31 50
1 OD
Capper 000
3 000
8 200
Iron 00 300
Lead 50 50 100
Manganese 3550 850 200
Mercury 2 2 -
Molybdenum --- --- 150
N1cke1
l --
510 ---
1 200
um
Se len
5 0 20
Silver 50 50 ---
Thalltum --- --
Uranium ---
3 5,000 5,000
Ztnt 5,000 5,000 2,000
BIOL06IOAL VARIABLES
Fecal tnlifnrm5 (per 100 mL) 5,91 0, 10 101,000
MISCELLANEOUS VARIBLES
Ammonia (mg/L as N) --- 20.5 ---
[hlortne (total residual; mg/L) --
3 --- ---
folor (color units) 15 --- ---
Cyenlde (m9/L) --
3 .2 ~ 0.2
Foaming Agents (mg L) .5 --
Nltrite (mg/L as x) -3- 1.0 to
Odor (threshold odor number)
~ ---
Sulfide as H2S (m9/L) OS
5
13
' 05 ---
141
Turbldlty (TU) .......... ,
1
... .. .0 ---
r,
N
N
.;
O
i
n
See page 2 for Tootnotes.