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Space Research And Technology, Sandusky, Ohio. NPDES permit OH0001392, in force until Sep 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Nickel, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Chromium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Color, spectrophoto-metric filter | monthly average | report only (severity) | all year | 017 |
| Color, spectrophoto-metric filter | daily maximum | report only (severity) | all year | 017 |
| pH | daily minimum | ≥ 6.5 SU | all year | 017 |
| pH | daily maximum | ≤ 9 SU | all year | 017 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 017 |
| Solids, total suspended | daily maximum | ≤ 18 mg/L | all year | 017 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 017 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 017 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 017 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 017 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 017 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 017 |
| Color, spectrophoto-metric filter | monthly average | report only (severity) | all year | 018 |
| Color, spectrophoto-metric filter | daily maximum | report only (severity) | all year | 018 |
| pH | daily minimum | ≥ 6.5 SU | all year | 018 |
| pH | daily maximum | ≤ 9 SU | all year | 018 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 018 |
| Solids, total suspended | daily maximum | ≤ 18 mg/L | all year | 018 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 018 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 018 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 018 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 018 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 018 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 018 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 3 Administration of Economic Programs permits in Ohio.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0001392 · MCP: https://passage-data.com/mcp