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Irrigation Systems, Plymouth, Maine. NPDES permit MEU507882 expired May 31, 2019; its limits still apply. Last 12 months: no values over a limit, 14 required values missing, 6 of 110 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Dec | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | May, Oct | 001 |
| Specific conductance | daily maximum | report only (umho/cm) | Dec | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | May, Oct | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | May, Oct | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | May, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | May, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 10 mg/L | Dec | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | Dec | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | Dec | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | May, Jun | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 001 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | May, Jun | 001 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | Dec | 001 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | Dec | 001 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | Dec | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | May, Oct | 001 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | Dec | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 100 mg/L | all year | 002 |
| pH | minimum | report only (SU) | all year | 002 |
| pH | maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 002 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Lagoon freeboard | daily minimum | ≥ 2 ft | all year | 002 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP1 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP1 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP2 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP2 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP3 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP3 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP4 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP4 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP5 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP5 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 100800 gal | all year | DP6 |
| Flow, total | monthly total | report only (gal/mo) | all year | DP6 |
| Application rate, gallons spray irrigation | weekly maximum | ≤ 375000 gal | Apr–Nov | SF1 |
| Flow, total | monthly total | report only (gal) | Apr–Nov | SF1 |
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/MEU507882 · MCP: https://passage-data.com/mcp