HYDRO28488

• Permit No: C1981041
• IBM Index Class Name: Hydrology
• Doc Date: 9/15/2004
• Doc Name: Amendment No. 1 to CDPS Permit No. CO-0027146
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF P(BLlC HEALTHAND ENVIRONMENT, Water Qua[iry Control Division
Rationale-Page 3, Permit No. 00.0017/46
EfjluentFlow001 4 0.053/0.0351/0.091 0.12/0.095/0.134 NA/NA 0
pH (su) 001 4 NA/NA/NA NAlti. ti/7.3 6.5/9 0
Fe, Tot (ug/!) 001 4 438/320/720 438/320/710 3500/7000 0
TSS (mg/1) 001 4 0/0/0 0/0/0 35/70 0
Oil & Grease (mg/1) 001 4 NA/NA/NA 1W/NY/M/ NA/10 0
TDS (mg/I) 001 4 NA/NA/NA 8]5/770/920 NA 0
Ef}IuentF1ow001 4 0.2/0.117/0.2981 0.3/0.2/0.401 NA/NA 0
pH (su) 002 4 NA/NA/NA NA/7.0/7.6 6.5/9 0
Fe, Tot (ug/1) 002 4 253/180/300 253/180/300 3500/7000 0
TSS (mg/l) 002 4 0/0/0 0/0/0 35/70 0
Oil & Grease (mg/I) 002 4 NA/NA/NA NY/Nl~/1W NA/10 0
TDS(mg/l)001 4 NA/NA/NA IS50/1500/1700 NA 0
WET, acute
Ceriodaphnia B NA >I00/>IOOh100 pass 0
Fathead Minnows 8 NA >IOOh100h100 pass 0
2. Surface Runot7Outfalls: This facility has nine active surface runoff outfalls, as shown in Table !I-1. A tenth outfall,
Outfal/ 006, was removed during reclamation activities in the fall of 2002. None of these outfalls discharged during the
previous two years.
3. State SamolinP: There are no state sampling results available for this facility.
B. Compliance With Terms and Conditions of Previous Permit
1. E(Ruent Limitations: The data shown in the preceding tables indicate that the Roadside Mine (North and South Portals)
ll facility has maintained compliance with the previous permit.
2. Other Permit Reouirements: The permittee has been in apparent compliance with all other terms and conditions of the
permit.
Last ReviseA: 11/3/2003
Table V-1-Self-Monitoring Results for Outfa11001
pH (su) 016 4 NA/NA/NA NA/6.9/7.6 6.5/9 0
Fe, Tot (ug/I) 016 4 98/3.72/280 228/11/700 3500/7000 0
TSS (mg/l) 016. 4 1.3/0/9 4.5/0/18 35/70 0
Oil & Grease (mg/1) 016 4 NA/NA/NA NY/NV/NV NA/10 0
TDS (mg/I) 016 4 NA/NA/NA 1525/1500/1600 NA 0