HYDRO26384

• Permit No: C1981033
• IBM Index Class Name: Hydrology
• Doc Date: 9/15/2005
• Doc Name: Edwards Portal Discharge Review Letter Memo
• From: Jim Stark
• To: Joe Dudash
• Permit Index Doc Type: Correspondence
• Media Type: D
• Archive: No

Edwards Portal Discharge
Analyte Edwards Sept 04 Edwards Jan 05 Bear Ed Avg Mine Discharge° Standard'

Aluminum 650 ug/I
- ~
4
50 ug/I --
1,280 ug/I
NT -
NS
7 ug/l ___ _ -_
_Ar_senic __ - .
_
- _ 1_1 ug/I ~ - _
- - 2 ug/I - <1_ug/I _ 50 ug1P
Barium 65 ug/I 41 ug/I IVT NT NS
Beryllium
.
11 ug/I , 27 ug/I NT NT NS
__
- _
Cadmium _ <0.6 ug/I _i_ - _
_<0.6 ug/I__ . _ _
_
0° _- _
_ _1 ug/I __ ___ _
_ _
3_.5 ug/I°
Calcium ~ 100 mgll (CaCO
3), _ 38 mg/I 120 mgt!
~ NT _ NS
_
Chromium <100 ug/I _
<100 ug/I
_ _
NT _
_
<50 ug/I _ __
50 ug/I°
~
Copper <25 ug/I ~ _-
_ _
_ 23 ug/1 _ - _
_
_ 0° _ -_
_ _ 3 ug/I _ _ 7.6 ug/I° _
Iron
4,100 ug/I 2,500 ug/I _
1,080 ug/I°
_ 1,650 ug/I 6,000 ug/I`
_
_
Lead ;_ 2 ug/I _ _
__ _
__ <1 ugll _ _
0°_ __ _
_
7 ugll - __ __ _
_ _ 2 ugly _-_
Magnesium 44 mg/I 39
mg/I 118 m
g/I NT NS

Manganese 1,200 ug/I _
_
_520 ug/I _
910 ug_/I _
_
<50 ug/I _ _
31 ug/I°
_
Molybdenum ' <250 ug/1
' _
_
<500 ug/I _
0° -
__
NT _
NS
__
Nickel 160 ugll __
_ <30 ugll ~
NT ___ __
120 ug/1 __
_
44 ugllb

Selenium _ <1 ug/I
<1 ug/I
0°
NT _
4.6 ug/I°

Silver <0.5 ug/I
<0.5 ug/I _ ___
NT __ _
40 ug/I _ -
0.05 ug/I°
Sodium 1,100 mg/I 1,100 mg/I , 835 mg/I
_ _ NT __ NS_
Uranium ~, 7 ug/I __ 4 ug/I ~ _ _
NT 2 ugll _ 1.2 mgll°
Zinc _ <50 ug/I <100 ug/I 30 ug/I ~
<50 ug/I 100 ug/I°
_
___
Total Org C Not Tested 65 mg/I _ ' NT NT NS

Volatile Orgs None Detected _
Not Tested _ __
NT ~ _
_
NT _ _ _
_ NS _
Semivol Orgs i None Detected Not Tested NT NT NS

Total Alk. 1,900 mg/I Not Tested
~ 1,134 mg/I ! 2,120 mg/I NS
Chloride i 41 mg/~ _
Not Tested 48 mg/I
'T 666 mg/I _
250 mg/P
_
Nitrate/Nitrite <6 mg/I Not Tested -
_7.3 mg/I __ _ ___
0.12 mg/I . _ 10 mg/P _ _
pH ~ 7.5
. Not Tested Not Tested 8.3 6.5-9.0`
_
Sulfate i 51 mg/I _
Not Tested _
1,252 mg/I ___
_
_ 15 mg/I _
250 mg/la
Sulfide ~ Not Detected Not Tested Not Tested Not Detected _
NS
- --- 1
1 = WOCC Regulation No. 35 Standards
_ ---
T --
- ---- -
_

NS = No Standard
-- - __
T
- _-, - _ _ _
_ - __
T
a =Published Value --- --
-- - - - - _--_ -_ - - _ _-_ -- -
~ - _-
b =Table Value Standard (TVS) Based on 82 mg/I Hardness _
------ ------- _ ~ _ _ _
c = NPDES Permit Limit
d
= No Detection Limit Give_n_ _ _
_
_ _
e =Since Samples taken at pond outtall, Fe probably removed by cattails
- -

--- _

-
f =Edwards Spring _1998 Average L ~

-- -- -
g =Sampled 18 July 1995 -Attached
-- - ------ ---- ----- -- _
- -- -
- -
-- - - -
to 23 August 1995 Letter from Sto_ver
to WO_CD_ _
- -

_
NT =Not Tested ` _