Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Pueblo, Colorado. NPDES permit CO0026646 expired Apr 30, 2021; its limits still apply. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| December 2025 | Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum value | < 4.5 tox chronic | ≥ 18 tox chronic |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum 7-day average | ≤ 45 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 13 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.4 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 14 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 10.9 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 12 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 16 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 29 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 31 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 25 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 30 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 93 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 33 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 45 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 25 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 28 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 39 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 31 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 33 mg/L | Nov | 001 |
| Nitrogen, inorganic total | aggregate rolling median | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | aggregate rolling median | ≤ 15 mg/L | all year | 001 |
| Nitrogen, inorganic total | 95th percentile | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | 95th percentile | ≤ 20 mg/L | all year | 001 |
| Phosphorus, total [as P] | aggregate rolling median | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | aggregate rolling median | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | 95th percentile | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | 95th percentile | ≤ 2.5 mg/L | all year | 001 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year | 001 |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 19 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | 30-day average | ≤ .062 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .071 mg/L | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 198 #/100mL | all year | 001 |
| E. coli | maximum 7-day geometric mean | ≤ 396 #/100mL | all year | 001 |
| Cyanide, free available | daily maximum | ≤ 8.3 ug/L | all year | 001 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum 7-day average | ≤ 40 mg/L | all year | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Sulfate | 30-day average | report only (mg/L) | all year | 001 |
| Sulfate | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year | 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 | ≥ 18 tox chronic | all year | 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 | ≥ 18 tox chronic | all year | 001 |
| 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 |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year | 300 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/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 |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | report only (mg/L) | all year | 300 |
| BOD, carbonaceous [5 day, 20 C] | maximum 7-day average | report only (mg/L) | all year | 300 |
| Sulfate | 30-day average | report only (mg/L) | all year | 300 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | UST1 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | UST1 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | UST2 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | UST2 |
| Temperature, water deg. centigrade | maximum weekly average | report only (deg C) | all year | UST3 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | UST3 |
Cited limits by parameter: Colorado's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0026646 · MCP: https://passage-data.com/mcp