NPDES permit MD0071773 · Minor NON-POTW · effective, expires 2027-10-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Cadmium, total [as Cd] (2).
Reports are due about 28 days after each monitoring period ends (the most common figure among MD permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Cadmium, dissolved [as Cd] | MO AVG | report only | all year |
| 001 | Cadmium, dissolved [as Cd] | MO AVG | report only | all year |
| 001 | Cadmium, dissolved [as Cd] | DAILY MX | report only | all year |
| 001 | Cadmium, dissolved [as Cd] | DAILY MX | report only | all year |
| 001 | Cadmium, total [as Cd] | MX MO AV | <= 5 ug/L | all year |
| 001 | Cadmium, total [as Cd] | MX MO AV | <= 5 ug/L | all year |
| 001 | Cadmium, total [as Cd] | DAILY MX | <= 12.5 ug/L | all year |
| 001 | Cadmium, total [as Cd] | DAILY MX | <= 12.5 ug/L | all year |
| 001 | Copper, total [as Cu] | MX MO AV | <= 9 ug/L | all year |
| 001 | Copper, total [as Cu] | MX MO AV | <= 9 ug/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= 13 ug/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= 13 ug/L | all year |
| 001 | Lead, total [as Pb] | MX MO AV | <= 2.5 ug/L | all year |
| 001 | Lead, total [as Pb] | MX MO AV | <= 2.5 ug/L | all year |
| 001 | Lead, total [as Pb] | DAILY MX | <= 65 ug/L | all year |
| 001 | Lead, total [as Pb] | DAILY MX | <= 65 ug/L | all year |
| 001 | Nickel, total [as Ni] | MX MO AV | <= 52 ug/L | all year |
| 001 | Nickel, total [as Ni] | MX MO AV | <= 52 ug/L | all year |
| 001 | Nickel, total [as Ni] | DAILY MX | <= 470 ug/L | all year |
| 001 | Nickel, total [as Ni] | DAILY MX | <= 470 ug/L | all year |
| 001 | Zinc, total [as Zn] | MX MO AV | <= 120 ug/L | all year |
| 001 | Zinc, total [as Zn] | MX MO AV | <= 120 ug/L | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= 120 ug/L | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= 120 ug/L | all year |
| 001 | Selenium, total [as Se] | MX MO AV | <= 5 ug/L | all year |
| 001 | Selenium, total [as Se] | MX MO AV | <= 5 ug/L | all year |
| 001 | Selenium, total [as Se] | DAILY MX | <= 20 ug/L | all year |
| 001 | Selenium, total [as Se] | DAILY MX | <= 20 ug/L | all year |
| 001 | Vinyl chloride | MX MO AV | <= .7 ug/L | all year |
| 001 | Vinyl chloride | MX MO AV | <= .7 ug/L | all year |
| 001 | Vinyl chloride | DAILY MX | report only | all year |
| 001 | Vinyl chloride | DAILY MX | report only | all year |
| 001 | Volatile Organic Compound [VOC] | MO AVG | report only | all year |
| 001 | Volatile Organic Compound [VOC] | MO AVG | report only | all year |
| 001 | Volatile Organic Compound [VOC] | DAILY MX | <= 100 ug/L | all year |
| 001 | Volatile Organic Compound [VOC] | DAILY MX | <= 100 ug/L | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | MO AVG | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | MO AVG | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | DAILY MX | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | DAILY MX | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | MO AVG | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | MO AVG | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | DAILY MX | report only | all year |
| 001 | PER-AND POLYFLUOROALKYL SUBSTANCES | DAILY MX | report only | all year |
| 001 | Mercury, total [as Hg] | MX MO AV | <= .77 ug/L | all year |
| 001 | Mercury, total [as Hg] | MX MO AV | <= .77 ug/L | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | <= 1.4 ug/L | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | <= 1.4 ug/L | all year |
| 001 | Flow | MO AVG | report only | all year |
| 001 | Flow | MO AVG | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Trichloroethene | MX MO AV | <= 10 ug/L | all year |
| 001 | Trichloroethene | MX MO AV | <= 10 ug/L | all year |
| 001 | Trichloroethene | DAILY MX | report only | all year |
| 001 | Trichloroethene | DAILY MX | report only | all year |
| 001 | cis-1,2-Dichloroethene | MX MO AV | <= 300 ug/L | all year |
| 001 | cis-1,2-Dichloroethene | MX MO AV | <= 300 ug/L | all year |
| 001 | cis-1,2-Dichloroethene | DAILY MX | report only | all year |
| 001 | cis-1,2-Dichloroethene | DAILY MX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states