WESTLAKE PIPE & FITTINGS

NPDES permit PA0080594 · Minor NON-POTW · expired, expires 2026-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-02-28 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

57values over a limit
45required values missing, on 1 form(s)
0of 24 forms filed late

Last period with anything received: 2026-06-30. Most often over: Vinyl chloride (36), 1,1,2,2-Tetrachloroethane (10), Carbon tetrachloride (4).

Reporting

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

Limits in force (66)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG <= 49 deg F Jan
001Temperature, water deg. fahrenheitMO AVG <= 92 deg F Sep
001Temperature, water deg. fahrenheitMO AVG <= 49 deg F Feb
001Temperature, water deg. fahrenheitMO AVG <= 84 deg F Apr
001Temperature, water deg. fahrenheitMO AVG <= 101 deg F Jun
001Temperature, water deg. fahrenheitMO AVG <= 74 deg F Oct
001Temperature, water deg. fahrenheitMO AVG <= 78 deg F Apr
001Temperature, water deg. fahrenheitMO AVG <= 97 deg F Aug
001Temperature, water deg. fahrenheitMO AVG <= 100 deg F May
001Temperature, water deg. fahrenheitMO AVG <= 57 deg F Nov
001Temperature, water deg. fahrenheitMO AVG <= 86 deg F Sep
001Temperature, water deg. fahrenheitMO AVG <= 48 deg F Dec
001Temperature, water deg. fahrenheitMO AVG <= 80 deg F Oct
001Temperature, water deg. fahrenheitMO AVG <= 105 deg F Jun
001Temperature, water deg. fahrenheitMO AVG <= 69 deg F Mar
001Temperature, water deg. fahrenheitMO AVG <= 97 deg F Aug
001Temperature, water deg. fahrenheitMO AVG <= 81 deg F May
001Temperature, water deg. fahrenheitMO AVG <= 67 deg F Nov
001Temperature, water deg. fahrenheitMO AVG <= 98 deg F Jul
001BOD, 5-day, 20 deg. CDAILY MX <= 26 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedDAILY MX <= 19 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 30 mg/L all year
001Oil & GreaseMO AVG report only all year
001Oil & GreaseDAILY MX report only all year
001DichlorobromomethaneMO AVG report only all year
001DichlorobromomethaneDAILY MX report only all year
001DichlorobromomethaneMO AVG report only all year
001DichlorobromomethaneDAILY MX report only all year
001Carbon tetrachlorideMO AVG <= .0015 mg/L all year
001Carbon tetrachlorideDAILY MX <= .0022 mg/L all year
001Carbon tetrachlorideMO AVG <= .0014 lb/d all year
001Carbon tetrachlorideDAILY MX <= .0021 lb/d all year
0011,2-DichloroethaneMO AVG <= .0025 mg/L all year
0011,2-DichloroethaneDAILY MX <= .0037 mg/L all year
0011,2-DichloroethaneMO AVG <= .0023 lb/d all year
0011,2-DichloroethaneDAILY MX <= .0035 lb/d all year
001ChlorodibromomethaneMO AVG report only all year
001ChlorodibromomethaneDAILY MX report only all year
001ChlorodibromomethaneMO AVG report only all year
001ChlorodibromomethaneDAILY MX report only all year
0011,1,2-TrichloroethaneMO AVG report only all year
0011,1,2-TrichloroethaneDAILY MX report only all year
0011,1,2-TrichloroethaneMO AVG report only all year
0011,1,2-TrichloroethaneDAILY MX report only all year
0011,1,2,2-TetrachloroethaneMO AVG <= .0011 mg/L all year
0011,1,2,2-TetrachloroethaneDAILY MX <= .0016 mg/L all year
0011,1,2,2-TetrachloroethaneMO AVG <= .001 lb/d all year
0011,1,2,2-TetrachloroethaneDAILY MX <= .0015 lb/d all year
001Vinyl chlorideMO AVG <= .0001 mg/L all year
001Vinyl chlorideDAILY MX <= .0002 mg/L all year
001Vinyl chlorideMO AVG <= .00015 lb/d all year
001Vinyl chlorideDAILY MX <= .00023 lb/d 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
0011,3-DichloropropeneMO AVG report only all year
0011,3-DichloropropeneDAILY MX report only all year
0011,3-DichloropropeneMO AVG report only all year
0011,3-DichloropropeneDAILY MX report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Zinc, total [as Zn]DAILY 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