HILCORP ENERGY COMPANY - MOUND POINT PRODUCTION FACILITY

NPDES permit LA0126578 · Minor NON-POTW · effective, expires 2029-05-31 · 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
0required values missing, on 0 form(s)
0of 47 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among LA permits in EPA's filings — check your permit).

Limits in force (67)

OutfallParameterStatisticLimitMonths
001Flow, in conduit or thru treatment plantMO 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Oil & GreaseMO AVG <= 29 mg/L all year
002Oil & GreaseMO AVG <= 29 mg/L all year
002Oil & GreaseDAILY MX <= 42 mg/L all year
002Oil & GreaseDAILY MX <= 42 mg/L all year
002Lead, total [as Pb]MO AVG report only all year
002Lead, total [as Pb]DAILY MX report only all year
002Thallium, total [as Tl]MO AVG report only all year
002Thallium, total [as Tl]DAILY MX report only all year
002Radium 226, totalMO AVG report only all year
002Radium 226, totalDAILY MX report only all year
002Radium 228, totalMO AVG report only all year
002Radium 228, totalDAILY MX report only all year
002Phenolics, total recoverableMO AVG report only all year
002Phenolics, total recoverableDAILY MX report only all year
002BenzeneMO AVG report only all year
002BenzeneDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Critical DilutionMO AVG report only all year
002Critical DilutionDAILY MX report only all year
002Benzene, calculated limitMO AVG report only all year
002Benzene, calculated limitDAILY MX report only all year
002Lead, calculated limitMO AVG report only all year
002Lead, calculated limitDAILY MX report only all year
002Phenol, calculated limitMO AVG report only all year
002Phenol, calculated limitDAILY MX report only all year
002Thallium, calculated limitMO AVG report only all year
002Thallium, calculated limitDAILY MX report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
002Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
002Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
002Coef Of Var Static Renewal 7Day Chronic Menidia beryllina7 DA MIN report only all year
002Coef Of Var Static Renewal 7Day Chronic Menidia beryllinaMO AV MN report only all year
004BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualMINIMUM >= 1 mg/L all year
004Chlorine, total residualMINIMUM >= 1 mg/L all year
004Chlorine, total residualMAXIMUM <= 2 mg/L all year
004Chlorine, total residualMAXIMUM <= 2 mg/L all year
004EnterococciMOAV GEO <= 35 #/100mL all year
004EnterococciDAILY MX <= 135 #/100mL all year
004Solids, floating - visual determinationDAILY MX <= 0 d all year
004Solids, floating - visual determinationDAILY MX <= 0 d all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, floating - visual determinationDAILY MX <= 0 d all year
005Solids, floating - visual determinationDAILY MX <= 0 d 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