REAGENT CHEMICAL & RESEARCH INC

NPDES permit TX0125369 · Minor NON-POTW · effective, expires 2031-02-03 · 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 36 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Chloride [as Cl]DAILY MX report only all year
002Barium, total [as Ba]DAILY MX report only all year
002Copper, total [as Cu]DAILY MX <= .032 mg/L all year
002Zinc, total [as Zn]DAILY MX <= .351 mg/L all year
002Aluminum, total [as Al]DAILY MX <= 1.77 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= .005 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= .046 MGD all year
002Solids, total dissolvedDAILY MX report only all year
003Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Zinc, total [as Zn]DAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY AV <= .005 MGD all year
003Flow, in conduit or thru treatment plantDAILY MX <= .05 MGD all year
004Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Copper, total [as Cu]DAILY MX <= .032 mg/L all year
004Zinc, total [as Zn]DAILY MX <= .351 mg/L all year
004Aluminum, total [as Al]DAILY MX <= 1.77 mg/L all year
004Flow, in conduit or thru treatment plantDAILY AV <= .005 MGD all year
004Flow, in conduit or thru treatment plantDAILY MX <= .47 MGD 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