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Bridge, Tunnel, & Elevated Highway, Silverthorne, Colorado. NPDES permit CO0026069 expired Sep 30, 2016; its limits still apply. Last 12 months: no values over a limit, 2 of 31 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | May, Jul | 001 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | Aug, Sep | 001 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | Jun | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | May, Jul | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Aug, Sep | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jun | 001 |
| pH | minimum | ≥ 6.5 SU | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| pH | minimum | ≥ 6.5 SU | May, Jul | 001 |
| pH | minimum | ≥ 6.5 SU | Aug, Sep | 001 |
| pH | minimum | ≥ 6.5 SU | Jun | 001 |
| pH | maximum | ≤ 9 SU | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| pH | maximum | ≤ 9 SU | May, Jul | 001 |
| pH | maximum | ≤ 9 SU | Aug, Sep | 001 |
| pH | maximum | ≤ 9 SU | Jun | 001 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | May, Jul | 001 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | Aug, Sep | 001 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | Jun | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | May, Jul | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Aug, Sep | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 16.9 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17.1 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 9.1 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 11.9 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 18.5 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 25 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 46.9 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 33 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 33 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 18.5 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 61 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 62 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 72 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.5 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 58 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 67 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 85 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 145 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 81 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 70 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 81 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 62 mg/L | Dec | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | May, Jul | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Aug, Sep | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Jun | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | May, Jul | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | Aug, Sep | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | Jun | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | May, Jul | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Aug, Sep | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jun | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | May, Jul | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | Jun | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | May, Jul | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | Aug, Sep | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | Jun | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | May, Jul | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Arsenic, total recoverable | 30-day average | report only (ug/L) | Jun | 001 |
| Iron, total recoverable | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Iron, total recoverable | 30-day average | report only (ug/L) | May, Jul | 001 |
| Iron, total recoverable | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Iron, total recoverable | 30-day average | report only (ug/L) | Jun | 001 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Iron, dissolved [as Fe] | 30-day average | ≤ 74 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | May, Jul | 001 |
| Iron, dissolved [as Fe] | 30-day average | ≤ 74 ug/L | May, Jul | 001 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Iron, dissolved [as Fe] | 30-day average | ≤ 74 ug/L | Aug, Sep | 001 |
| Iron, dissolved [as Fe] | 30-day average | report only (ug/L) | Jun | 001 |
| Iron, dissolved [as Fe] | 30-day average | ≤ 74 ug/L | Jun | 001 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | May, Jul | 001 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Manganese, dissolved [as Mn] | 30-day average | report only (ug/L) | Jun | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | May, Jul | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Jun | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | May, Jul | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | Jun | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | May, Jul | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Jun | 001 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | May, Jul | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 22 ug/L | May, Jul | 001 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 22 ug/L | Aug, Sep | 001 |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | Jun | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 22 ug/L | Jun | 001 |
| Zinc, potentially dissolved | 30-day average | ≤ 22 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .038 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | May, Jul | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .035 ug/L | May, Jul | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .037 ug/L | Aug, Sep | 001 |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | Jun | 001 |
| Silver, potentially dissolved | 30-day average | ≤ .035 ug/L | Jun | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .94 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | May, Jul | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .71 ug/L | May, Jul | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .77 ug/L | Aug, Sep | 001 |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | Jun | 001 |
| Silver, potentially dissolved | daily maximum | ≤ .71 ug/L | Jun | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | May, Jul | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | Jun | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | May, Jul | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Jun | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | May, Jul | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Jun | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .41 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | May, Jul | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .38 ug/L | May, Jul | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .4 ug/L | Aug, Sep | 001 |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 001 |
| Cadmium, potentially dissolvd | 30-day average | ≤ .38 ug/L | Jun | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1.4 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | May, Jul | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1 ug/L | May, Jul | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1.1 ug/L | Aug, Sep | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Jun | 001 |
| Cadmium, potentially dissolvd | daily maximum | ≤ 1 ug/L | Jun | 001 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | May, Jul | 001 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 001 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.7 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | May, Jul | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.5 ug/L | May, Jul | 001 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.6 ug/L | Aug, Sep | 001 |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 001 |
| Lead, potentially dissolvd | 30-day average | ≤ 1.5 ug/L | Jun | 001 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | May, Jul | 001 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | May, Jul | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Jun | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 6.6 ug/L | May, Jul | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 7 ug/L | Aug, Sep | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Jun | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 7 ug/L | Jun | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | May, Jul | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Selenium, potentially dissolvd | 30-day average | ≤ 7.3 ug/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | May, Jul | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Jun | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Jun | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | May, Jul | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Aug, Sep | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Oil and grease | daily maximum | ≤ 10 mg/L | May, Jul | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | Aug, Sep | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | Jun | 001 |
| Uranium, total | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Uranium, total | 30-day average | report only (ug/L) | May, Jul | 001 |
| Uranium, total | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Uranium, total | 30-day average | report only (ug/L) | Jun | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .37 MGD | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1.89 MGD | May, Jul | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .97 MGD | Aug, Sep | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 2.18 MGD | Jun | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May, Jul | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Aug, Sep | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun | 001 |
| Chlorine, total residual | 30-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chlorine, total residual | 30-day average | report only (mg/L) | May, Jul | 001 |
| Chlorine, total residual | 30-day average | report only (mg/L) | Aug, Sep | 001 |
| Chlorine, total residual | 30-day average | report only (mg/L) | Jun | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .034 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .034 mg/L | May, Jul | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .034 mg/L | Aug, Sep | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .034 mg/L | Jun | 001 |
| E. coli | 30-day average | ≤ 626 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| E. coli | 30-day average | ≤ 1774 #/100mL | May, Jul | 001 |
| E. coli | 30-day average | ≤ 1149 #/100mL | Aug, Sep | 001 |
| E. coli | 30-day average | ≤ 2000 #/100mL | Jun | 001 |
| E. coli | maximum 7-day average | ≤ 1252 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| E. coli | maximum 7-day average | ≤ 3548 #/100mL | May, Jul | 001 |
| E. coli | maximum 7-day average | ≤ 2298 #/100mL | Aug, Sep | 001 |
| E. coli | maximum 7-day average | ≤ 4000 #/100mL | Jun | 001 |
| Molybdenum, potentially dissolved | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Molybdenum, potentially dissolved | 30-day average | report only (ug/L) | May, Jul | 001 |
| Molybdenum, potentially dissolved | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Molybdenum, potentially dissolved | 30-day average | report only (ug/L) | Jun | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | May, Jul | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | Aug, Sep | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | Jun | 001 |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=1) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=1) | May, Jul | 001 |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=1) | Aug, Sep | 001 |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=1) | Jun | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | single sample | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | ≥ 63 tox chronic | Mar, Sep | 001 |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum value | ≥ 69 tox chronic | Jun, Dec | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | single sample | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | report only (tox chronic) | all year | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | ≥ 69 tox chronic | Jun, Dec | 001 |
| Static Renewal 7 Day Chronic Pimephales promelas | minimum value | ≥ 63 tox chronic | Mar, Sep | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | ≤ 45 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | maximum 7-day average | ≤ 45 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .072 MGD | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year | 002 |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year | 002 |
| Plant capacity fact. percent of capacity | 30-day average | report only (%) | all year | 300 |
| Plant capacity fact. percent of capacity | 30-day average | report only (%) | all year | 300 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 300 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | report only (mg/L) | all year | 300 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (lb/d) | all year | 300 |
| BOD, 5-day, 20 deg. C | maximum 7-day average | report only (lb/d) | all year | 300 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 300 |
| Solids, total suspended | maximum 7-day average | report only (mg/L) | all year | 300 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 300 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 300 |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 3 Heavy Construction permits in Colorado.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0026069 · MCP: https://passage-data.com/mcp