HYDRO24575

• Permit No: C1981019
• IBM Index Class Name: Hydrology
• Doc Date: 2/4/1999
• Doc Name: RATIONALE FOR PUBLIC NOTICE
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

COLORADO DEP.1RTti1EET OF PUBLIC HEALTH AND E~WIRO~VIi LENT, Water Quality Control Division
Rationale -Page 8, Permit No. CO-0045161
Iron, mg/P
ry avg

Table V-5 -Self-Monitoring Results for Outfafl 005
3.

Parameter . No. Of ..
Reporting
Periods Reported
Concentrations ,Previous
i Permit:
Limitation - No. of
Limitation
Ercursions
Flow MGD
30-day avg
2
0.34?,~0.058/0.626
none
-
dai[y max 2 0.342/0.058/0.626 none -
TSS, mg/A
30-day avg 1 34 35 0
daily max 1 34 70 0
Oil & Grease, mg/B 2 NV/NV/NV 10 0
pH, s. u. (min max) 2 -/78/10.0 6.5-9.0 2
Settleable Solids, mP/P 2 <0.3/<0.1/<0.5 0.5 0
TDS, mg/P 2 950/490/1410 none -
Tota! Iron, mg/P
Table V-6 -Self-Monitoring ResuUs for Outfall 007
N
o.: Of :. Reported : Previors No:.of
Reportin Concentrations ~.~Permit... Limitation
8::.:: .:
Parameter Periods .....; ..: Avg/Nlin/Max Limitation : Excursions
Flow MGD
30-day avg
dairy max
TSS, mg/A
30-day avg
dotty max
Oil & Grease, mg/P
Settleable Solids, m?/P
TDS, mg/8
Iota[ Iron, mg/P
4 0.281/0.14/0.484 none -
4 0.463/0.20/0.903 none -
1
5 70 0
4 NV/NV/NV 10 0
4 -/7.9/8.8 6.5-9.0 0
2 <0.5/<0.5/<0.5 0.5 0
4 800/490/1120 none -
Table V-7 -Self-Monitoring Results for OutfaII 008

Parameter No. Of: '.
. Reporting
Periods .. Reported
Concentrations
Avg/Min/ibfaz Previous .. No, of
~IPermit. Limitation
Limitation . Excursions
Flow. MGD
30-day avg 3 0.36/0.184/0.52 none -
daily max 3 0.46/0.33/0.523 none -
TSS, mg/P
30-dav avg 1 80 35 1
daily inax 1 80 70 1
Oil & Grease, mg/t' 3 ,bV,'.nIV,'NV 10 0