ROCKY GAP STATE PARK WWTP

NPDES permit MD0051667 · Minor NON-POTW · effective, expires 2030-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
25required values missing, on 7 form(s)
2of 22 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (71)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMAXIMUM report only all year
001Temperature, water deg. fahrenheitMAXIMUM report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Temperature, water deg. fahrenheitMAXIMUM report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 16 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 24 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 20 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 30 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMX MO AV <= 16 mg/L all year
001Solids, total suspendedMX WK AV <= 24 mg/L all year
001Solids, total suspendedMX MO AV <= 20 lb/d all year
001Solids, total suspendedANNL MAX <= 17800 lb/yr all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedMX WK AV <= 30 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]MO TOTAL <= 3276 lb/yr all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 4.9 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 7 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 6.1 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 8.8 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]ANNL MAX <= 457 lb/yr all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Sulfate, dissolved [as SO4]MO AVG report only all year
001Phosphate, ortho [as P]MO AVG report only all year
001AcrylonitrileMO AVG report only all year
001Benzo[b]fluorantheneMO AVG report only all year
001Benzo[k]fluorantheneMO AVG report only all year
001Benzo[a]pyreneMO AVG report only all year
001ChryseneMO AVG report only all year
0011,2-DiphenylhydrazineMO AVG report only all year
001Indeno[1,2,3-cd]pyreneMO AVG report only all year
001N-Nitrosodi-N-propylamineMO AVG report only all year
001N-Nitrosodimethylamine [NDMA]MO AVG report only all year
001Benzo[a]anthraceneMO AVG report only all year
001Dibenz[a,h]anthraceneMO AVG report only all year
0012,3,7,8-Tetrachlorodibenzo-p-dioxinQRTR AVG report only all year
001Di[2-ethylhexyl] phthalate [DEHP]MO AVG report only all year
001BenzidineMO AVG report only all year
0014,4'-DDTMO AVG report only all year
0014,4'-DDDMO AVG report only all year
0014,4'-DDEMO AVG report only all year
001AldrinMO AVG report only all year
001Chlordane [tech mix. and metabolites]MO AVG report only all year
001ToxapheneMO AVG report only all year
001HeptachlorMO AVG report only all year
001Heptachlor epoxideMO AVG report only all year
001HexachlorobenzeneMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMAXIMUM <= .055 mg/L all year
001E. coliGX <= 126 MPN/100mL all year
001Solids, total dissolved [TDS]QRTR AVG report only all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001Flow, totalMO TOTAL report only all year
001Chloride, dissolved [as Cl]MO AVG report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101Solids, total suspendedMO AVG 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