2015-07-16_GENERAL DOCUMENTS - M1987023

• Permit No: M1987023
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 7/16/2015
• Doc Name: Notes
• From: Mitchell Pit
• To: DRMS
• Email Name: TOD
• Media Type: D
• Archive: No

Groundwater Analytical Results and Surface Water Discharge Permit Limits - North Metro Rail Line
South Platte - Segment 15 (Class. - Aq. Life Warm 2, Recreation E, Water Supply, Agriculture)
Denver, Colorado
Notes:
Hardness -Dependent Value for River Segment = 200 mg/L assumed average value for Segment 15
Permit Limit highlighted in green
Value potentially exceeds discharge permit limit
Permit limit is less than the laboratory's reporting limit and minimum detection limit
TVS = table value standard
DWS - domestic water supply limit
TSS = total suspended solids
TDS - total dissolved solids
dis = dissolved
' - Dissolved concentrations apply to metals
2 - For new or increased discharges that commence on or after 6/1/2013, the temporary modification adopted [for chronic arsenic] is 0.02-3 NgA (Trec), expiring on 1;
A - Agricultural Standard; no Drinking Water Standard
Other Parameters
Acenaphthene (ug/L)
15.7
<9.62
<0.971
420
Anthracene (ug/L)
23.6
<9.62
<0.971
1,200
Benzo(a)anthracene (ug/L)
5.88
<0.
0.0048
Benzene (ug/L)
4.3
21,500
<20
5
Chrysene (ug/L)
3.4
<0.971
0.0048
Cyclohexane (ug/L)
3.3
<2,000
<20
IMU
Dimethylphenol -2,4 (ug/L)
<98
182
<9.71
140
Ethylbenzene (ug/L)
13.6
3,700
<20
700
Fluoranthene (ug/L)
6.1
<9.62
<0.971
280
Fluorene (ug/L)
42.9
<9.62
<0.971
Isopropylbenzene (ug/L)
3.6
<2,000
<20
o -Xylene (ug/L)
25.2
9,940
<20
10,000
m,p-Xylenes (ug/L)
14.5
22,500
<40
(total
xylenes)
Methylcyclohexane (ug/L)
4.9
<2,000
<20
2.3
<2,000
555
Naphthalene (ug/L)
16.6
220
<0.971
140
Pyrene (ug/L)
49.3
<9.62
<0.971
210
Toulene (ug/L)
6.4
63,700
<20
1,000
Notes:
Hardness -Dependent Value for River Segment = 200 mg/L assumed average value for Segment 15
Permit Limit highlighted in green
Value potentially exceeds discharge permit limit
Permit limit is less than the laboratory's reporting limit and minimum detection limit
TVS = table value standard
DWS - domestic water supply limit
TSS = total suspended solids
TDS - total dissolved solids
dis = dissolved
' - Dissolved concentrations apply to metals
2 - For new or increased discharges that commence on or after 6/1/2013, the temporary modification adopted [for chronic arsenic] is 0.02-3 NgA (Trec), expiring on 1;
A - Agricultural Standard; no Drinking Water Standard