DERRY CONST CO INC

NPDES permit PAS706101 · Minor NON-POTW · effective, expires 2030-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

5values over a limit
41required values missing, on 4 form(s)
8of 16 forms filed late

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (3), Oil & Grease (2).

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 (41)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHDAILY MX report only all year
001Solids, total suspendedINST MAX <= 30 mg/L all year
001Oil & GreaseINST MAX <= 5 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHDAILY MX report only all year
002Solids, total suspendedINST MAX <= 30 mg/L all year
002Oil & GreaseINST MAX <= 5 mg/L all year
002Nitrogen, total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Iron, total [as Fe]DAILY MX report only all year
002Manganese, total [as Mn]DAILY MX report only all year
002Aluminum, total [as Al]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
003pHDAILY MX report only all year
003Solids, total suspendedINST MAX <= 30 mg/L all year
003Oil & GreaseINST MAX <= 5 mg/L all year
003Nitrogen, total [as N]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Iron, total [as Fe]DAILY MX report only all year
003Manganese, total [as Mn]DAILY MX report only all year
003Aluminum, total [as Al]DAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
004pHDAILY MX report only all year
004Solids, total suspendedINST MAX <= 30 mg/L all year
004Oil & GreaseINST MAX <= 5 mg/L all year
004Nitrogen, total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Iron, total [as Fe]DAILY MX report only all year
004Manganese, total [as Mn]DAILY MX report only all year
004Aluminum, total [as Al]DAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX 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