Halliburton Energy Services, Inc - Magcobar Mine Site

NPDES permit AR0049794 · Major 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 15 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among AR permits in EPA's filings — check your permit).

Limits in force (78)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Chloride [as Cl]MO AVG <= 68 mg/L all year
001Chloride [as Cl]DAILY MX <= 102 mg/L all year
001Chloride [as Cl]MO AVG <= 1871.5 lb/d all year
001Chloride [as Cl]DAILY MX <= 2807.2 lb/d all year
001Sulfate, total [as SO4]MO AVG <= 1384 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 2076 mg/L all year
001Sulfate, total [as SO4]MO AVG <= 38090.4 lb/d all year
001Sulfate, total [as SO4]DAILY MX <= 57135.7 lb/d all year
001Iron, total recoverableMO AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Iron, total recoverableMO AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Selenium, total recoverableMO AVG <= 5.58 ug/L all year
001Selenium, total recoverableDAILY MX <= 11.2 ug/L all year
001Selenium, total recoverableMO AVG <= .154 lb/d all year
001Selenium, total recoverableDAILY MX <= .308 lb/d all year
001Beryllium, total recoverable [as Be]MO AVG <= 4 ug/L all year
001Beryllium, total recoverable [as Be]DAILY MX <= 6.56 ug/L all year
001Beryllium, total recoverable [as Be]MO AVG <= .11 lb/d all year
001Beryllium, total recoverable [as Be]DAILY MX <= .181 lb/d all year
001Barium, total recoverableMO AVG report only all year
001Barium, total recoverableDAILY MX report only all year
001Barium, total recoverableMO AVG report only all year
001Barium, total recoverableDAILY MX report only all year
001Nickel, total recoverableMO AVG <= 108 ug/L all year
001Nickel, total recoverableDAILY MX <= 217 ug/L all year
001Nickel, total recoverableMO AVG <= 2.972 lb/d all year
001Nickel, total recoverableDAILY MX <= 5.972 lb/d all year
001Silver total recoverableMO AVG <= 1.36 ug/L all year
001Silver total recoverableDAILY MX <= 2.73 ug/L all year
001Silver total recoverableMO AVG <= .037 lb/d all year
001Silver total recoverableDAILY MX <= .075 lb/d all year
001Zinc, total recoverableMO AVG <= 95 ug/L all year
001Zinc, total recoverableDAILY MX <= 191 ug/L all year
001Zinc, total recoverableMO AVG <= 2.615 lb/d all year
001Zinc, total recoverableDAILY MX <= 5.257 lb/d all year
001Aluminum, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Aluminum, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Cadmium, total recoverableMO AVG <= 2.25 ug/L all year
001Cadmium, total recoverableDAILY MX <= 4.52 ug/L all year
001Cadmium, total recoverableMO AVG <= .062 lb/d all year
001Cadmium, total recoverableDAILY MX <= .124 lb/d all year
001Lead, total recoverableMO AVG <= 3.24 ug/L all year
001Lead, total recoverableDAILY MX <= 6.5 ug/L all year
001Lead, total recoverableMO AVG <= .089 lb/d all year
001Lead, total recoverableDAILY MX <= .179 lb/d all year
001Copper, total recoverableMO AVG <= 10.5 ug/L all year
001Copper, total recoverableDAILY MX <= 21 ug/L all year
001Copper, total recoverableMO AVG <= .289 lb/d all year
001Copper, total recoverableDAILY MX <= .578 lb/d all year
001Manganese, total recoverableMO AVG report only all year
001Manganese, total recoverableDAILY MX report only all year
001Manganese, total recoverableMO AVG report only all year
001Manganese, total recoverableDAILY MX 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
001Solids, total dissolvedMO AVG <= 2261 mg/L all year
001Solids, total dissolvedDAILY MX <= 3391.5 mg/L all year
001Solids, total dissolvedMO AVG <= 62227.2 lb/d all year
001Solids, total dissolvedDAILY MX <= 93340.9 lb/d all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN > 100 % all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN > 80 % all year
TX1Whole Effluent Toxicity [WET] - P. promelas7 DA MIN > 100 % all year
TX1Whole Effluent Toxicity [WET] - P. promelas7 DA MIN > 80 % all year
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN 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