Merck Sharp & Dohme LLC

NPDES permit VA0002178 · Major NON-POTW · effective, expires 2026-12-31 · 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 39 forms filed late

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

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (182)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM <= 37 deg C all year
001Oxygen, dissolved [DO]MINIMUM >= 4.5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 1570 kg/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 3100 kg/d all year
001Oxygen demand, chem. [low level] [COD]MO AVG report only all year
001Oxygen demand, chem. [low level] [COD]DAILY MX report only all year
001Oxygen demand, chem. [low level] [COD]MO AVG report only all year
001Oxygen demand, chem. [low level] [COD]DAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG <= 2700 kg/d all year
001Solids, total suspendedDAILY MX <= 5400 kg/d all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 645.9 kg/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 1300 kg/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 1291 kg/d all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX <= 2600 kg/d all year
001Temperature, length of excursionMO MAX <= 446 min 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 residualMO AVG <= .06 mg/L all year
001Chlorine, total residualDAILY MX <= .12 mg/L all year
001Length of longest pH excursionET <= 60 min all year
001pH range excursions, monthly total accumMO MAX <= 446 min all year
003Solids, total suspendedMAXIMUM report only all year
003Nitrogen, total [as N]MAXIMUM report only all year
003Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
003Nitrite + Nitrate total [as N]MAXIMUM report only all year
003Phosphorus, total [as P]MAXIMUM report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101BOD, 5-day, 20 deg. CDAILY MX report only all year
101BOD, 5-day, 20 deg. CMO AVG <= 310 kg/d all year
101BOD, 5-day, 20 deg. CDAILY MX <= 620 kg/d all year
101Oxygen demand, chem. [low level] [COD]MO AVG <= 240 mg/L all year
101Oxygen demand, chem. [low level] [COD]DAILY MX <= 480 mg/L all year
101Oxygen demand, chem. [low level] [COD]MO AVG <= 1100 kg/d all year
101Oxygen demand, chem. [low level] [COD]DAILY MX <= 2200 kg/d all year
101Solids, total suspendedMO AVG report only all year
101Solids, total suspendedDAILY MX report only all year
101Solids, total suspendedMO AVG <= 530 kg/d all year
101Solids, total suspendedDAILY MX <= 1000 kg/d all year
101Nitrogen, ammonia total [as N]MO AVG <= 29.4 mg/L all year
101Nitrogen, ammonia total [as N]DAILY MX <= 61.8 mg/L all year
101Nitrogen, ammonia total [as N]MO AVG <= 130 kg/d all year
101Nitrogen, ammonia total [as N]DAILY MX <= 280 kg/d all year
101Cyanide, total [as CN]MO AVG <= .46 mg/L all year
101Cyanide, total [as CN]DAILY MX <= .64 mg/L all year
101Cyanide, total [as CN]MO AVG <= 2.1 kg/d all year
101Cyanide, total [as CN]DAILY MX <= 2.9 kg/d all year
101Methyl cellosolveMO AVG <= 40.6 mg/L all year
101Methyl cellosolveDAILY MX <= 100 mg/L all year
101Methyl cellosolveMO AVG <= 180 kg/d all year
101Methyl cellosolveDAILY MX <= 450 kg/d all year
101ChloroformMO AVG <= .013 mg/L all year
101ChloroformDAILY MX <= .02 mg/L all year
101ChloroformMO AVG <= .059 kg/d all year
101ChloroformDAILY MX <= .091 kg/d all year
101TolueneMO AVG <= .02 mg/L all year
101TolueneDAILY MX <= .06 mg/L all year
101TolueneMO AVG <= .091 kg/d all year
101TolueneDAILY MX <= .27 kg/d all year
101BenzeneMO AVG <= .02 mg/L all year
101BenzeneDAILY MX <= .05 mg/L all year
101BenzeneMO AVG <= .091 kg/d all year
101BenzeneDAILY MX <= .23 kg/d all year
101ChlorobenzeneMO AVG <= .06 mg/L all year
101ChlorobenzeneDAILY MX <= .15 mg/L all year
101ChlorobenzeneMO AVG <= .27 kg/d all year
101ChlorobenzeneDAILY MX <= .68 kg/d all year
101Methylene chlorideMO AVG <= .3 mg/L all year
101Methylene chlorideDAILY MX <= .9 mg/L all year
101Methylene chlorideMO AVG <= 1.4 kg/d all year
101Methylene chlorideDAILY MX <= 4.1 kg/d all year
1011,2-Dichloroethane, total weightMO AVG <= .1 mg/L all year
1011,2-Dichloroethane, total weightDAILY MX <= .4 mg/L all year
1011,2-Dichloroethane, total weightMO AVG <= .45 kg/d all year
1011,2-Dichloroethane, total weightDAILY MX <= 1.8 kg/d all year
1011,2-DichlorobenzeneMO AVG <= .06 mg/L all year
1011,2-DichlorobenzeneDAILY MX <= .15 mg/L all year
1011,2-DichlorobenzeneMO AVG <= .27 kg/d all year
1011,2-DichlorobenzeneDAILY MX <= .68 kg/d all year
101PhenolMO AVG <= .02 mg/L all year
101PhenolDAILY MX <= .05 mg/L all year
101PhenolMO AVG <= .091 kg/d all year
101PhenolDAILY MX <= .23 kg/d all year
101Isopropyl acetateMO AVG <= .5 mg/L all year
101Isopropyl acetateDAILY MX <= 1.3 mg/L all year
101Isopropyl acetateMO AVG <= 2.3 kg/d all year
101Isopropyl acetateDAILY MX <= 5.9 kg/d all year
101Flow, in conduit or thru treatment plantMO AVG <= 1.2 MGD all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Methyl formateMO AVG <= .5 mg/L all year
101Methyl formateDAILY MX <= 1.3 mg/L all year
101Methyl formateMO AVG <= 2.3 kg/d all year
101Methyl formateDAILY MX <= 5.9 kg/d all year
101IsobutyraldehydeMO AVG <= .5 mg/L all year
101IsobutyraldehydeDAILY MX <= 1.2 mg/L all year
101IsobutyraldehydeMO AVG <= 2.3 kg/d all year
101IsobutyraldehydeDAILY MX <= 5.4 kg/d all year
101n-Amyl acetateMO AVG <= .5 mg/L all year
101n-Amyl acetateDAILY MX <= 1.3 mg/L all year
101n-Amyl acetateMO AVG <= 2.3 kg/d all year
101n-Amyl acetateDAILY MX <= 5.9 kg/d all year
101Amyl alcoholMO AVG <= 4.1 mg/L all year
101Amyl alcoholDAILY MX <= 10 mg/L all year
101Amyl alcoholMO AVG <= 19 kg/d all year
101Amyl alcoholDAILY MX <= 45 kg/d all year
101AcetonitrileMO AVG <= 10.2 mg/L all year
101AcetonitrileDAILY MX <= 25 mg/L all year
101AcetonitrileMO AVG <= 46 kg/d all year
101AcetonitrileDAILY MX <= 110 kg/d all year
101EthanolMO AVG <= 4.1 mg/L all year
101EthanolDAILY MX <= 10 mg/L all year
101EthanolMO AVG <= 19 kg/d all year
101EthanolDAILY MX <= 45 kg/d all year
101IsopropanolMO AVG <= 1.6 mg/L all year
101IsopropanolDAILY MX <= 3.9 mg/L all year
101IsopropanolMO AVG <= 7.3 kg/d all year
101IsopropanolDAILY MX <= 18 kg/d all year
101DiethylamineMO AVG <= 102 mg/L all year
101DiethylamineDAILY MX <= 250 mg/L all year
101DiethylamineMO AVG <= 460 kg/d all year
101DiethylamineDAILY MX <= 1100 kg/d all year
101Dimethyl sulfoxide, totalMO AVG <= 37.5 mg/L all year
101Dimethyl sulfoxide, totalDAILY MX <= 91.5 mg/L all year
101Dimethyl sulfoxide, totalMO AVG <= 170 kg/d all year
101Dimethyl sulfoxide, totalDAILY MX <= 420 kg/d all year
101TriethylamineMO AVG <= 102 mg/L all year
101TriethylamineDAILY MX <= 250 mg/L all year
101TriethylamineMO AVG <= 460 kg/d all year
101TriethylamineDAILY MX <= 1100 kg/d all year
101Isopropyl etherMO AVG <= 2.6 mg/L all year
101Isopropyl etherDAILY MX <= 8.4 mg/L all year
101Isopropyl etherMO AVG <= 12 kg/d all year
101Isopropyl etherDAILY MX <= 38 kg/d all year
101n-Butyl acetateMO AVG <= .5 mg/L all year
101n-Butyl acetateDAILY MX <= 1.3 mg/L all year
101n-Butyl acetateMO AVG <= 2.3 kg/d all year
101n-Butyl acetateDAILY MX <= 5.9 kg/d all year
101Methanol, totalMO AVG <= 4.1 mg/L all year
101Methanol, totalDAILY MX <= 10 mg/L all year
101Methanol, totalMO AVG <= 19 kg/d all year
101Methanol, totalDAILY MX <= 45 kg/d all year
1014-Methyl-2-pentanoneMO AVG <= .2 mg/L all year
1014-Methyl-2-pentanoneDAILY MX <= .5 mg/L all year
1014-Methyl-2-pentanoneMO AVG <= .91 kg/d all year
1014-Methyl-2-pentanoneDAILY MX <= 2.3 kg/d all year
101HeptaneMO AVG <= .02 mg/L all year
101HeptaneDAILY MX <= .05 mg/L all year
101HeptaneMO AVG <= .091 kg/d all year
101HeptaneDAILY MX <= .23 kg/d all year
101Xylene [mix of m+o+p]MO AVG <= .01 mg/L all year
101Xylene [mix of m+o+p]DAILY MX <= .03 mg/L all year
101Xylene [mix of m+o+p]MO AVG <= .045 kg/d all year
101Xylene [mix of m+o+p]DAILY MX <= .14 kg/d all year
101AcetoneMO AVG <= .2 mg/L all year
101AcetoneDAILY MX <= .5 mg/L all year
101AcetoneMO AVG <= .91 kg/d all year
101AcetoneDAILY MX <= 2.3 kg/d all year
101Ethyl acetateMO AVG <= .5 mg/L all year
101Ethyl acetateDAILY MX <= 1.3 mg/L all year
101Ethyl acetateMO AVG <= 2.3 kg/d all year
101Ethyl acetateDAILY MX <= 5.9 kg/d all year
101HexaneMO AVG <= .02 mg/L all year
101HexaneDAILY MX <= .03 mg/L all year
101HexaneMO AVG <= .091 kg/d all year
101HexaneDAILY MX <= .14 kg/d all year
101TetrahydrofuranMO AVG <= 2.6 mg/L all year
101TetrahydrofuranDAILY MX <= 8.4 mg/L all year
101TetrahydrofuranMO AVG <= 12 kg/d all year
101TetrahydrofuranDAILY MX <= 38 kg/d all year
102Flow, in conduit or thru treatment plantMO AVG <= .15 MGD all year
102Flow, in conduit or thru treatment plantMAXIMUM report only all year
102Chlorine, total residualINST MIN >= .6 mg/L all year
102E. coliGEO MEAN <= 126 #/100mL 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