LAUREL SAND & STONE INC

NPDES permit PA0279625 · Minor NON-POTW · effective, expires 2028-07-02 · 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
462required values missing, on 30 form(s)
30of 100 forms filed late

Last period with anything received: 2026-03-31.

Reporting

Reports are due about 59 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (308)

OutfallParameterStatisticLimitMonths
001Specific conductanceINST MAX report only all year
001Specific conductanceINST MAX report only all year
001pHINST MIN >= 6 SU all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedINST MAX <= 90 mg/L all year
001Solids, total suspendedINST MAX <= 90 mg/L all year
001Sulfate, total [as SO4]INST MAX report only all year
001Sulfate, total [as SO4]INST MAX report only all year
001Iron, total [as Fe]INST MAX <= 7 mg/L all year
001Iron, total [as Fe]INST MAX <= 7 mg/L all year
001Manganese, total [as Mn]INST MAX <= 5 mg/L all year
001Manganese, total [as Mn]INST MAX <= 5 mg/L all year
001Aluminum, total [as Al]INST MAX <= 5 mg/L all year
001Aluminum, total [as Al]INST MAX <= 5 mg/L all year
001Flow, in conduit or thru treatment plantINST MAX report only all year
001Flow, in conduit or thru treatment plantINST MAX report only all year
002Specific conductanceINST MAX report only all year
002Specific conductanceINST MAX report only all year
002pHINST MIN >= 6 SU all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedINST MAX <= 90 mg/L all year
002Solids, total suspendedINST MAX <= 90 mg/L all year
002Sulfate, total [as SO4]INST MAX report only all year
002Sulfate, total [as SO4]INST MAX report only all year
002Iron, total [as Fe]INST MAX <= 7 mg/L all year
002Iron, total [as Fe]INST MAX <= 7 mg/L all year
002Manganese, total [as Mn]INST MAX <= 5 mg/L all year
002Manganese, total [as Mn]INST MAX <= 5 mg/L all year
002Aluminum, total [as Al]INST MAX <= 5 mg/L all year
002Aluminum, total [as Al]INST MAX <= 5 mg/L all year
002Flow, in conduit or thru treatment plantINST MAX report only all year
002Flow, in conduit or thru treatment plantINST MAX report only all year
003Specific conductanceINST MAX report only all year
003Specific conductanceINST MAX report only all year
003Specific conductanceINST MAX report only all year
003Specific conductanceINST MAX report only all year
003pHINST MIN >= 6 SU all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003pHINST MAX <= 9 SU all year
003pHINST MIN >= 6 SU all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003pHINST MAX <= 9 SU all year
003Solids, total suspendedINST MAX <= 90 mg/L all year
003Solids, total suspendedINST MAX <= 90 mg/L all year
003Solids, total suspendedINST MAX <= 90 mg/L all year
003Solids, total suspendedINST MAX <= 90 mg/L all year
003Sulfate, total [as SO4]INST MAX report only all year
003Sulfate, total [as SO4]INST MAX report only all year
003Sulfate, total [as SO4]INST MAX report only all year
003Sulfate, total [as SO4]INST MAX report only all year
003Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
003Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
003Iron, total [as Fe]INST MAX <= 7 mg/L all year
003Iron, total [as Fe]INST MAX <= 7 mg/L all year
003Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
003Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
003Manganese, total [as Mn]INST MAX <= 5 mg/L all year
003Manganese, total [as Mn]INST MAX <= 5 mg/L all year
003Aluminum, total [as Al]INST MAX <= .75 mg/L all year
003Aluminum, total [as Al]INST MAX <= .75 mg/L all year
003Aluminum, total [as Al]INST MAX <= 5 mg/L all year
003Aluminum, total [as Al]INST MAX <= 5 mg/L all year
003Flow, in conduit or thru treatment plantINST MAX report only all year
003Flow, in conduit or thru treatment plantINST MAX report only all year
004Specific conductanceINST MAX report only all year
004Specific conductanceINST MAX report only all year
004Specific conductanceINST MAX report only all year
004Specific conductanceINST MAX report only all year
004pHINST MIN >= 6 SU all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004pHINST MAX <= 9 SU all year
004pHINST MIN >= 6 SU all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004pHINST MAX <= 9 SU all year
004Solids, total suspendedINST MAX <= 90 mg/L all year
004Solids, total suspendedINST MAX <= 90 mg/L all year
004Solids, total suspendedINST MAX <= 90 mg/L all year
004Solids, total suspendedINST MAX <= 90 mg/L all year
004Sulfate, total [as SO4]INST MAX report only all year
004Sulfate, total [as SO4]INST MAX report only all year
004Sulfate, total [as SO4]INST MAX report only all year
004Sulfate, total [as SO4]INST MAX report only all year
004Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
004Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
004Iron, total [as Fe]INST MAX <= 7 mg/L all year
004Iron, total [as Fe]INST MAX <= 7 mg/L all year
004Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
004Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
004Manganese, total [as Mn]INST MAX <= 5 mg/L all year
004Manganese, total [as Mn]INST MAX <= 5 mg/L all year
004Aluminum, total [as Al]INST MAX <= .75 mg/L all year
004Aluminum, total [as Al]INST MAX <= .75 mg/L all year
004Aluminum, total [as Al]INST MAX <= 5 mg/L all year
004Aluminum, total [as Al]INST MAX <= 5 mg/L all year
004Flow, in conduit or thru treatment plantINST MAX report only all year
004Flow, in conduit or thru treatment plantINST MAX report only all year
005Specific conductanceINST MAX report only all year
005Specific conductanceINST MAX report only all year
005Specific conductanceINST MAX report only all year
005Specific conductanceINST MAX report only all year
005pHINST MIN >= 6 SU all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005pHINST MAX <= 9 SU all year
005pHINST MIN >= 6 SU all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005pHINST MAX <= 9 SU all year
005Solids, total suspendedINST MAX <= 90 mg/L all year
005Solids, total suspendedINST MAX <= 90 mg/L all year
005Solids, total suspendedINST MAX <= 90 mg/L all year
005Solids, total suspendedINST MAX <= 90 mg/L all year
005Sulfate, total [as SO4]INST MAX report only all year
005Sulfate, total [as SO4]INST MAX report only all year
005Sulfate, total [as SO4]INST MAX report only all year
005Sulfate, total [as SO4]INST MAX report only all year
005Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
005Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
005Iron, total [as Fe]INST MAX <= 7 mg/L all year
005Iron, total [as Fe]INST MAX <= 7 mg/L all year
005Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
005Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
005Manganese, total [as Mn]INST MAX <= 5 mg/L all year
005Manganese, total [as Mn]INST MAX <= 5 mg/L all year
005Aluminum, total [as Al]INST MAX <= .75 mg/L all year
005Aluminum, total [as Al]INST MAX <= .75 mg/L all year
005Aluminum, total [as Al]INST MAX <= 5 mg/L all year
005Aluminum, total [as Al]INST MAX <= 5 mg/L all year
005Flow, in conduit or thru treatment plantINST MAX report only all year
005Flow, in conduit or thru treatment plantINST MAX report only all year
006Specific conductanceINST MAX report only all year
006Specific conductanceINST MAX report only all year
006Specific conductanceINST MAX report only all year
006Specific conductanceINST MAX report only all year
006pHINST MIN >= 6 SU all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006pHINST MAX <= 9 SU all year
006pHINST MIN >= 6 SU all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006pHINST MAX <= 9 SU all year
006Solids, total suspendedINST MAX <= 90 mg/L all year
006Solids, total suspendedINST MAX <= 90 mg/L all year
006Solids, total suspendedINST MAX <= 90 mg/L all year
006Solids, total suspendedINST MAX <= 90 mg/L all year
006Sulfate, total [as SO4]INST MAX report only all year
006Sulfate, total [as SO4]INST MAX report only all year
006Sulfate, total [as SO4]INST MAX report only all year
006Sulfate, total [as SO4]INST MAX report only all year
006Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
006Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
006Iron, total [as Fe]INST MAX <= 7 mg/L all year
006Iron, total [as Fe]INST MAX <= 7 mg/L all year
006Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
006Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
006Manganese, total [as Mn]INST MAX <= 5 mg/L all year
006Manganese, total [as Mn]INST MAX <= 5 mg/L all year
006Aluminum, total [as Al]INST MAX <= .75 mg/L all year
006Aluminum, total [as Al]INST MAX <= .75 mg/L all year
006Aluminum, total [as Al]INST MAX <= 5 mg/L all year
006Aluminum, total [as Al]INST MAX <= 5 mg/L all year
006Flow, in conduit or thru treatment plantINST MAX report only all year
006Flow, in conduit or thru treatment plantINST MAX report only all year
007Specific conductanceINST MAX report only all year
007Specific conductanceINST MAX report only all year
007Specific conductanceINST MAX report only all year
007Specific conductanceINST MAX report only all year
007pHINST MIN >= 6 SU all year
007pHINST MIN >= 6 SU all year
007pHINST MAX <= 9 SU all year
007pHINST MAX <= 9 SU all year
007pHINST MIN >= 6 SU all year
007pHINST MIN >= 6 SU all year
007pHINST MAX <= 9 SU all year
007pHINST MAX <= 9 SU all year
007Solids, total suspendedINST MAX <= 90 mg/L all year
007Solids, total suspendedINST MAX <= 90 mg/L all year
007Solids, total suspendedINST MAX <= 90 mg/L all year
007Solids, total suspendedINST MAX <= 90 mg/L all year
007Sulfate, total [as SO4]INST MAX report only all year
007Sulfate, total [as SO4]INST MAX report only all year
007Sulfate, total [as SO4]INST MAX report only all year
007Sulfate, total [as SO4]INST MAX report only all year
007Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
007Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
007Iron, total [as Fe]INST MAX <= 7 mg/L all year
007Iron, total [as Fe]INST MAX <= 7 mg/L all year
007Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
007Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
007Manganese, total [as Mn]INST MAX <= 5 mg/L all year
007Manganese, total [as Mn]INST MAX <= 5 mg/L all year
007Aluminum, total [as Al]INST MAX <= .75 mg/L all year
007Aluminum, total [as Al]INST MAX <= .75 mg/L all year
007Aluminum, total [as Al]INST MAX <= 5 mg/L all year
007Aluminum, total [as Al]INST MAX <= 5 mg/L all year
007Flow, in conduit or thru treatment plantINST MAX report only all year
007Flow, in conduit or thru treatment plantINST MAX report only all year
008Specific conductanceINST MAX report only all year
008Specific conductanceINST MAX report only all year
008Specific conductanceINST MAX report only all year
008Specific conductanceINST MAX report only all year
008pHINST MIN >= 6 SU all year
008pHINST MIN >= 6 SU all year
008pHINST MAX <= 9 SU all year
008pHINST MAX <= 9 SU all year
008pHINST MIN >= 6 SU all year
008pHINST MIN >= 6 SU all year
008pHINST MAX <= 9 SU all year
008pHINST MAX <= 9 SU all year
008Solids, total suspendedINST MAX <= 90 mg/L all year
008Solids, total suspendedINST MAX <= 90 mg/L all year
008Solids, total suspendedINST MAX <= 90 mg/L all year
008Solids, total suspendedINST MAX <= 90 mg/L all year
008Sulfate, total [as SO4]INST MAX report only all year
008Sulfate, total [as SO4]INST MAX report only all year
008Sulfate, total [as SO4]INST MAX report only all year
008Sulfate, total [as SO4]INST MAX report only all year
008Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
008Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
008Iron, total [as Fe]INST MAX <= 7 mg/L all year
008Iron, total [as Fe]INST MAX <= 7 mg/L all year
008Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
008Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
008Manganese, total [as Mn]INST MAX <= 5 mg/L all year
008Manganese, total [as Mn]INST MAX <= 5 mg/L all year
008Aluminum, total [as Al]INST MAX <= .75 mg/L all year
008Aluminum, total [as Al]INST MAX <= .75 mg/L all year
008Aluminum, total [as Al]INST MAX <= 5 mg/L all year
008Aluminum, total [as Al]INST MAX <= 5 mg/L all year
008Flow, in conduit or thru treatment plantINST MAX report only all year
008Flow, in conduit or thru treatment plantINST MAX report only all year
009Specific conductanceINST MAX report only all year
009Specific conductanceINST MAX report only all year
009Specific conductanceINST MAX report only all year
009Specific conductanceINST MAX report only all year
009pHINST MIN >= 6 SU all year
009pHINST MIN >= 6 SU all year
009pHINST MAX <= 9 SU all year
009pHINST MAX <= 9 SU all year
009pHINST MIN >= 6 SU all year
009pHINST MIN >= 6 SU all year
009pHINST MAX <= 9 SU all year
009pHINST MAX <= 9 SU all year
009Solids, total suspendedINST MAX <= 90 mg/L all year
009Solids, total suspendedINST MAX <= 90 mg/L all year
009Solids, total suspendedINST MAX <= 90 mg/L all year
009Solids, total suspendedINST MAX <= 90 mg/L all year
009Sulfate, total [as SO4]INST MAX report only all year
009Sulfate, total [as SO4]INST MAX report only all year
009Sulfate, total [as SO4]INST MAX report only all year
009Sulfate, total [as SO4]INST MAX report only all year
009Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
009Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
009Iron, total [as Fe]INST MAX <= 7 mg/L all year
009Iron, total [as Fe]INST MAX <= 7 mg/L all year
009Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
009Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
009Manganese, total [as Mn]INST MAX <= 5 mg/L all year
009Manganese, total [as Mn]INST MAX <= 5 mg/L all year
009Aluminum, total [as Al]INST MAX <= .75 mg/L all year
009Aluminum, total [as Al]INST MAX <= .75 mg/L all year
009Aluminum, total [as Al]INST MAX <= 5 mg/L all year
009Aluminum, total [as Al]INST MAX <= 5 mg/L all year
009Flow, in conduit or thru treatment plantINST MAX report only all year
009Flow, in conduit or thru treatment plantINST MAX report only all year
010Specific conductanceINST MAX report only all year
010Specific conductanceINST MAX report only all year
010Specific conductanceINST MAX report only all year
010Specific conductanceINST MAX report only all year
010pHINST MIN >= 6 SU all year
010pHINST MIN >= 6 SU all year
010pHINST MAX <= 9 SU all year
010pHINST MAX <= 9 SU all year
010pHINST MIN >= 6 SU all year
010pHINST MIN >= 6 SU all year
010pHINST MAX <= 9 SU all year
010pHINST MAX <= 9 SU all year
010Solids, total suspendedINST MAX <= 90 mg/L all year
010Solids, total suspendedINST MAX <= 90 mg/L all year
010Solids, total suspendedINST MAX <= 90 mg/L all year
010Solids, total suspendedINST MAX <= 90 mg/L all year
010Sulfate, total [as SO4]INST MAX report only all year
010Sulfate, total [as SO4]INST MAX report only all year
010Sulfate, total [as SO4]INST MAX report only all year
010Sulfate, total [as SO4]INST MAX report only all year
010Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
010Iron, total [as Fe]INST MAX <= 3.7 mg/L all year
010Iron, total [as Fe]INST MAX <= 7 mg/L all year
010Iron, total [as Fe]INST MAX <= 7 mg/L all year
010Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
010Manganese, total [as Mn]INST MAX <= 2.5 mg/L all year
010Manganese, total [as Mn]INST MAX <= 5 mg/L all year
010Manganese, total [as Mn]INST MAX <= 5 mg/L all year
010Aluminum, total [as Al]INST MAX <= .75 mg/L all year
010Aluminum, total [as Al]INST MAX <= .75 mg/L all year
010Aluminum, total [as Al]INST MAX <= 5 mg/L all year
010Aluminum, total [as Al]INST MAX <= 5 mg/L all year
010Flow, in conduit or thru treatment plantINST MAX report only all year
010Flow, in conduit or thru treatment plantINST MAX report only all year

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