HEXPOL Compounding LLC

NPDES permit TN0000221 · Minor NON-POTW · effective, expires 2027-06-30 · EPA's file as of 2026-09-19

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

0values over a limit

0required values missing, on 0 form(s)

0of 16 forms filed late

Last period with anything received: 2026-06-30.

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Outfall IMPA, form Q (Stormwater inflow at IMP): files for periods ending in Mar, Jun, Sep, Dec
Outfall IMPB, form Q (Stormwater inflow at IMP): files for periods ending in Mar, Jun, Sep, Dec
Outfall IMPC, form Q (Stormwater inflow at IMP): files for periods ending in Mar, Jun, Sep, Dec

Outfall	Parameter	Statistic	Limit	Months
IMPA	Zinc, total [as Zn]	DAILY MX	report only	all year
IMPB	Zinc, total [as Zn]	DAILY MX	report only	all year
IMPC	Zinc, total [as Zn]	DAILY MX	report only	all year
SW1	pH	DAILY MN	>= 6 SU	Mar, Jun, Sep, Dec
SW1	pH	DAILY MX	<= 9 SU	Mar, Jun, Sep, Dec
SW1	Solids, total suspended	DAILY MX	report only	Mar, Jun, Sep, Dec
SW1	Zinc, total [as Zn]	DAILY MX	report only	Mar, Jun, Sep, Dec
SW1	Flow, total	ET	report only	Mar, Jun, Sep, Dec

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