Passage Data · Check a report · Use it from your AI
Paper Mills, major discharger, Chillicothe, Ohio. NPDES permit OH0004481 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit once (last October 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| October 2025 | pH, maximum, daily maximum | 9.8 | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | May–Oct | 001 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 37 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 74 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 4320 kg/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 8630 kg/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 93 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 172 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 10900 kg/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 20100 kg/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Barium, total recoverable | monthly average | ≤ 358 ug/L | all year | 001 |
| Barium, total recoverable | daily maximum | ≤ 3700 ug/L | all year | 001 |
| Barium, total recoverable | monthly average | ≤ 41.7 kg/d | all year | 001 |
| Barium, total recoverable | daily maximum | ≤ 431 kg/d | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 504 ug/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 58.8 kg/d | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Aug, Dec | 001 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Aug, Dec | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 001 |
| Halogen, total organic | monthly average | ≤ 587 kg/d | all year | 001 |
| Halogen, total organic | daily maximum | ≤ 895 kg/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Sep | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Sep | 003 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Sep | 003 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Sep | 003 |
| pH | daily minimum | report only (SU) | Sep | 003 |
| pH | daily maximum | report only (SU) | Sep | 003 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Sep | 003 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Sep | 003 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Sep | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Sep | 003 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 003 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 003 |
| Copper, total recoverable | monthly average | report only (ug/L) | Sep | 003 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Sep | 003 |
| Rainfall | monthly average | report only (in) | Sep | 003 |
| Rainfall | daily maximum | report only (in) | Sep | 003 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Sep | 005 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Sep | 005 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Sep | 005 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Sep | 005 |
| pH | daily minimum | report only (SU) | Sep | 005 |
| pH | daily maximum | report only (SU) | Sep | 005 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Sep | 005 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Sep | 005 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Sep | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Sep | 005 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 005 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 005 |
| Copper, total recoverable | monthly average | report only (ug/L) | Sep | 005 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Sep | 005 |
| Rainfall | monthly average | report only (in) | Sep | 005 |
| Rainfall | daily maximum | report only (in) | Sep | 005 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Sep | 007 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Sep | 007 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Sep | 007 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Sep | 007 |
| pH | daily minimum | report only (SU) | Sep | 007 |
| pH | daily maximum | report only (SU) | Sep | 007 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Sep | 007 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Sep | 007 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Sep | 007 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Sep | 007 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 007 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 007 |
| Copper, total recoverable | monthly average | report only (ug/L) | Sep | 007 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Sep | 007 |
| Rainfall | monthly average | report only (in) | Sep | 007 |
| Rainfall | daily maximum | report only (in) | Sep | 007 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Sep | 009 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Sep | 009 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Sep | 009 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Sep | 009 |
| pH | daily minimum | report only (SU) | Sep | 009 |
| pH | daily maximum | report only (SU) | Sep | 009 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Sep | 009 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Sep | 009 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Sep | 009 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Sep | 009 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 009 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 009 |
| Copper, total recoverable | monthly average | report only (ug/L) | Sep | 009 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Sep | 009 |
| Rainfall | monthly average | report only (in) | Sep | 009 |
| Rainfall | daily maximum | report only (in) | Sep | 009 |
| Sludge weight, dry | monthly average | report only (dry ton) | all year | 582 |
| Sludge weight, dry | daily maximum | report only (dry ton) | all year | 582 |
| Sludge weight, wet | monthly average | report only (wet ton) | all year | 582 |
| Sludge weight, wet | daily maximum | report only (wet ton) | all year | 582 |
| Sludge weight, dry | monthly average | report only (dry ton) | all year | 586 |
| Sludge weight, dry | daily maximum | report only (dry ton) | all year | 586 |
| Chloroform | monthly average | ≤ 3.97 kg/d | Jan, Mar, May, Jul, Sep, Nov | 600 |
| Chloroform | daily maximum | ≤ 6.64 kg/d | Jan, Mar, May, Jul, Sep, Nov | 600 |
| 2,4,6-Trichlorophenol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | daily maximum | ≤ .0099 ng/L | Apr, Oct | 600 |
| Pentachlorophenol | daily maximum | ≤ 4.99 ug/L | Apr, Oct | 600 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 600 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 600 |
| 3,4,6-Trichlorocatechol | daily maximum | ≤ 4.99 ug/L | Apr, Oct | 600 |
| 3,4,6-Trichloroguaiacol, total | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 3,4,5-Trichloroguaiacol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 2,3,4,5-Tetrachlorophenol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 3,4,5-Trichlorocatechol | daily maximum | ≤ 4.99 ug/L | Apr, Oct | 600 |
| Tetrachloroguaiacol | daily maximum | ≤ 4.99 ug/L | Apr, Oct | 600 |
| Trichlorosyringol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 4,5,6-Trichloroguaiacol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 2,4,5-Trichlorophenol | daily maximum | ≤ 2.49 ug/L | Apr, Oct | 600 |
| 2,3,7,8-Tetrachlorodibenzofuran | daily maximum | ≤ 31.9 pg/L | Apr, Oct | 600 |
| Tetrachlorocatechol | daily maximum | ≤ 4.99 ug/L | Apr, Oct | 600 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 802 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 802 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 802 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 802 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 802 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 802 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 802 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 802 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 802 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 802 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 802 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 902 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 902 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 902 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 902 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 902 |
| pH | daily minimum | report only (SU) | all year | 902 |
| pH | daily maximum | report only (SU) | all year | 902 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 902 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 902 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 902 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 902 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 902 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 902 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 8 Paper and Allied Products permits in Ohio.
· 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/OH0004481 · MCP: https://passage-data.com/mcp