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Sewage treatment plant, major discharger, Sanford, Maine. NPDES permit ME0100617 expired Jul 31, 2023; its limits still apply. Last 12 months: over a limit once (last June 2026), 1 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Aluminum, total [as Al], monthly average | 9.898 lb/d | ≤ 9.39 lb/d | 5% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Flow rate | daily minimum | ≥ 100 cfs | Feb–Apr |
| Flow rate | daily minimum | ≥ 20 cfs | all year |
| Oxygen, dissolved [DO] | daily minimum | ≥ 7.5 ppm | May–Sep |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Feb–Apr |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | May–Sep |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 mg/L | Feb–Apr |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | May–Sep |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 2202 lb/d | Feb–Apr |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 1101 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 261 lb/d | May–Sep |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 3670 lb/d | Feb–Apr |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 1835 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 522 lb/d | May–Sep |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | May–Sep |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | Feb–Apr |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 1651 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 392 lb/d | May–Sep |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 3303 lb/d | Feb–Apr |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Feb–Apr |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 10 mg/L | May–Sep |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | Feb–Apr |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | daily maximum | ≤ 20 mg/L | May–Sep |
| Solids, total suspended | monthly average | ≤ 2202 lb/d | Feb–Apr |
| Solids, total suspended | monthly average | ≤ 1101 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 290 lb/d | May–Sep |
| Solids, total suspended | daily maximum | ≤ 3670 lb/d | Feb–Apr |
| Solids, total suspended | daily maximum | ≤ 1835 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | daily maximum | ≤ 580 lb/d | May–Sep |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Feb–Apr |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | weekly average | ≤ 15 mg/L | May–Sep |
| Solids, total suspended | weekly average | ≤ 3303 lb/d | Feb–Apr |
| Solids, total suspended | weekly average | ≤ 1651 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Solids, total suspended | weekly average | ≤ 435 lb/d | May–Sep |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12.5 mg/L | Feb–Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 11.3 mg/L | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 612 lb/d | Feb–Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 276 lb/d | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 14.5 lb/d | May–Sep |
| Phosphorus, total [as P] | monthly average | ≤ 23 lb/d | Feb–Apr |
| Phosphorus, total [as P] | monthly average | ≤ 3 lb/d | May–Sep |
| Phosphorus, total [as P] | monthly average | ≤ 23 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | ≤ 46 lb/d | Feb–Apr |
| Phosphorus, total [as P] | daily maximum | ≤ 46 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Feb–Apr |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Feb–Apr |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec |
| Copper, total [as Cu] | monthly average | ≤ .56 lb/d | Feb–Apr |
| Copper, total [as Cu] | monthly average | ≤ .28 lb/d | Mar, Jun, Sep, Dec |
| Copper, total [as Cu] | daily maximum | ≤ .72 lb/d | Feb–Apr |
| Copper, total [as Cu] | daily maximum | ≤ .36 lb/d | Mar, Jun, Sep, Dec |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Feb–Apr |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec |
| Aluminum, total [as Al] | monthly average | ≤ 18.8 lb/d | Feb–Apr |
| Aluminum, total [as Al] | monthly average | ≤ 9.39 lb/d | Mar, Jun, Sep, Dec |
| E. coli, thermotol, MF, MTEC | monthly geometric mean | ≤ 126 #/100mL | May–Sep |
| E. coli, thermotol, MF, MTEC | daily maximum | ≤ 643 #/100mL | May–Sep |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 8.8 MGD | Feb–Apr |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 4.4 MGD | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 3.48 MGD | May–Sep |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Feb–Apr |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May–Sep |
| Flow, in conduit or thru treatment plant | weekly average | report only (MGD) | Feb–Apr |
| Analytical Chemistry | value | report only (N=0;Y=1) | all year |
| Analytical Chemistry | value | report only (N=0;Y=1) | all year |
| Mercury, total [as Hg] | monthly average | ≤ 4.5 ng/L | Feb–Apr |
| Mercury, total [as Hg] | monthly average | ≤ 4.5 ng/L | all year |
| Mercury, total [as Hg] | daily maximum | ≤ 6.8 ng/L | Feb–Apr |
| Mercury, total [as Hg] | daily maximum | ≤ 6.8 ng/L | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| Noel Statre 10Day Chronic Salvel. Salmonid | daily minimum | report only (%) | all year |
| Noel Statre 10Day Chronic Salvel. Salmonid | daily minimum | report only (%) | all year |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| NOAEL Static 48Hr Acute Salvel. Salmonid | daily minimum | report only (%) | all year |
| NOAEL Static 48Hr Acute Salvel. Salmonid | daily minimum | report only (%) | all year |
Cited limits by parameter: Maine's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/ME0100617 · MCP: https://passage-data.com/mcp