Vopak Logistcs Services USA Inc — NPDES permit TX0030937: limits, due date and EPA's record

Refuse Systems, major discharger, Deer Park, Texas. NPDES permit TX0030937, in force until Mar 8, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (166)

Parameter	Statistic	Limit	Months	Outfall
Oxygen demand, chem. [high level] [COD]	daily average	report only (mg/L)	all year	001
Oxygen demand, chem. [high level] [COD]	daily maximum	report only (mg/L)	all year	001
Oxygen demand, chem. [high level] [COD]	daily average	≤ 643.4 lb/d	all year	001
Oxygen demand, chem. [high level] [COD]	daily maximum	≤ 1001.4 lb/d	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily average	≤ 30.6 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 74.1 mg/L	all year	001
Solids, total suspended	daily average	≤ 76.6 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 170.2 lb/d	all year	001
Oil & Grease	daily average	≤ 10 mg/L	all year	001
Oil & Grease	daily maximum	≤ 15 mg/L	all year	001
Oil & Grease	daily average	≤ 25 lb/d	all year	001
Oil & Grease	daily maximum	≤ 50 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily average	≤ 10 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 20 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily average	≤ 25 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 50 lb/d	all year	001
Phosphorus, total [as P]	daily average	report only (mg/L)	all year	001
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year	001
Cyanide, free [as free]	daily average	≤ .036 mg/L	all year	001
Cyanide, free [as free]	daily maximum	≤ .076 mg/L	all year	001
Cyanide, free [as free]	daily average	≤ .09 lb/d	all year	001
Cyanide, free [as free]	daily maximum	≤ .19 lb/d	all year	001
Arsenic, total [as As]	daily average	≤ .1 mg/L	all year	001
Arsenic, total [as As]	daily maximum	≤ .162 mg/L	all year	001
Arsenic, total [as As]	daily average	≤ .25 lb/d	all year	001
Arsenic, total [as As]	daily maximum	≤ .406 lb/d	all year	001
Cadmium, total [as Cd]	daily average	≤ .0102 mg/L	all year	001
Cadmium, total [as Cd]	daily maximum	≤ .0172 mg/L	all year	001
Cadmium, total [as Cd]	daily average	≤ .026 lb/d	all year	001
Cadmium, total [as Cd]	daily maximum	≤ .043 lb/d	all year	001
Chromium, total [as Cr]	daily maximum	report only (mg/L)	all year	001
Chromium, total [as Cr]	daily maximum	≤ .63 lb/d	all year	001
Cobalt, total [as Co]	daily average	≤ .124 mg/L	all year	001
Cobalt, total [as Co]	daily maximum	≤ .192 mg/L	all year	001
Cobalt, total [as Co]	daily average	≤ .31 lb/d	all year	001
Cobalt, total [as Co]	daily maximum	≤ .481 lb/d	all year	001
Copper, total [as Cu]	daily average	≤ .178 mg/L	all year	001
Copper, total [as Cu]	daily maximum	≤ .376 mg/L	all year	001
Copper, total [as Cu]	daily average	≤ .446 lb/d	all year	001
Copper, total [as Cu]	daily maximum	≤ .941 lb/d	all year	001
Lead, total [as Pb]	daily average	≤ .16 mg/L	all year	001
Lead, total [as Pb]	daily maximum	≤ .35 mg/L	all year	001
Lead, total [as Pb]	daily average	≤ .401 lb/d	all year	001
Lead, total [as Pb]	daily maximum	≤ .876 lb/d	all year	001
Nickel, total [as Ni]	daily average	≤ .212 mg/L	all year	001
Nickel, total [as Ni]	daily maximum	≤ .45 mg/L	all year	001
Nickel, total [as Ni]	daily average	≤ .531 lb/d	all year	001
Nickel, total [as Ni]	daily maximum	≤ 1.13 lb/d	all year	001
Silver, total [as Ag]	daily average	≤ .03 mg/L	all year	001
Silver, total [as Ag]	daily maximum	≤ .063 mg/L	all year	001
Silver, total [as Ag]	daily average	≤ .075 lb/d	all year	001
Silver, total [as Ag]	daily maximum	≤ .158 lb/d	all year	001
Vanadium, total [as V]	daily average	≤ .066 mg/L	all year	001
Vanadium, total [as V]	daily maximum	≤ .218 mg/L	all year	001
Vanadium, total [as V]	daily average	≤ .166 lb/d	all year	001
Vanadium, total [as V]	daily maximum	≤ .546 lb/d	all year	001
Zinc, total [as Zn]	daily average	≤ .42 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ .497 mg/L	all year	001
Zinc, total [as Zn]	daily average	≤ 1.05 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	≤ 1.24 lb/d	all year	001
Antimony, total [as Sb]	daily average	≤ .206 mg/L	all year	001
Antimony, total [as Sb]	daily maximum	≤ .249 mg/L	all year	001
Antimony, total [as Sb]	daily average	≤ .516 lb/d	all year	001
Antimony, total [as Sb]	daily maximum	≤ .623 lb/d	all year	001
Tin, total [as Sn]	daily average	≤ .12 mg/L	all year	001
Tin, total [as Sn]	daily maximum	≤ .409 mg/L	all year	001
Tin, total [as Sn]	daily average	≤ .3 lb/d	all year	001
Tin, total [as Sn]	daily maximum	≤ 1.02 lb/d	all year	001
Titanium, total [as Ti]	daily average	≤ .062 mg/L	all year	001
Titanium, total [as Ti]	daily maximum	≤ .095 mg/L	all year	001
Titanium, total [as Ti]	daily average	≤ .155 lb/d	all year	001
Titanium, total [as Ti]	daily maximum	≤ .237 lb/d	all year	001
Butyl benzyl phthalate	daily average	≤ .0887 mg/L	all year	001
Butyl benzyl phthalate	daily maximum	≤ .188 mg/L	all year	001
Butyl benzyl phthalate	daily average	≤ .222 lb/d	all year	001
Butyl benzyl phthalate	daily maximum	≤ .471 lb/d	all year	001
Fluoranthene	daily average	≤ .268 mg/L	all year	001
Fluoranthene	daily maximum	≤ .0537 mg/L	all year	001
Fluoranthene	daily average	≤ .067 lb/d	all year	001
Fluoranthene	daily maximum	≤ .134 lb/d	all year	001
2,4,6-Trichlorophenol	daily average	≤ .106 mg/L	all year	001
2,4,6-Trichlorophenol	daily maximum	≤ .155 mg/L	all year	001
2,4,6-Trichlorophenol	daily average	≤ .265 lb/d	all year	001
2,4,6-Trichlorophenol	daily maximum	≤ .388 lb/d	all year	001
Phenol	daily average	≤ 1.08 mg/L	all year	001
Phenol	daily maximum	≤ 3.65 mg/L	all year	001
Phenol	daily average	≤ 2.7 lb/d	all year	001
Phenol	daily maximum	≤ 9.14 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .101 mg/L	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .215 mg/L	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .253 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .538 lb/d	all year	001
Phenols	daily average	report only (mg/L)	all year	001
Phenols	daily maximum	≤ .3 mg/L	all year	001
Phenols	daily average	≤ .31 lb/d	all year	001
Phenols	daily maximum	≤ .62 lb/d	all year	001
Flow, in conduit or thru treatment plant	daily average	≤ .3 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	≤ .81 MGD	all year	001
o-Cresol	daily average	≤ .561 mg/L	all year	001
o-Cresol	daily maximum	≤ 1.92 mg/L	all year	001
o-Cresol	daily average	≤ 1.4 lb/d	all year	001
o-Cresol	daily maximum	≤ 4.81 lb/d	all year	001
Enterococci	daily average	≤ 35 CFU/100mL	all year	001
Enterococci	daily maximum	≤ 104 CFU/100mL	all year	001
Mercury, total [as Hg]	daily average	≤ .0007 mg/L	all year	001
Mercury, total [as Hg]	daily maximum	≤ .0023 mg/L	all year	001
Mercury, total [as Hg]	daily average	≤ .002 lb/d	all year	001
Mercury, total [as Hg]	daily maximum	≤ .006 lb/d	all year	001
Pyridine	daily average	≤ .182 mg/L	all year	001
Pyridine	daily maximum	≤ .37 mg/L	all year	001
Pyridine	daily average	≤ .456 lb/d	all year	001
Pyridine	daily maximum	≤ .926 lb/d	all year	001
p-Cresol	daily average	≤ .205 mg/L	all year	001
p-Cresol	daily maximum	≤ .698 mg/L	all year	001
p-Cresol	daily average	≤ .513 lb/d	all year	001
p-Cresol	daily maximum	≤ 1.75 lb/d	all year	001
n-Decane	daily average	≤ .437 mg/L	all year	001
n-Decane	daily maximum	≤ .948 mg/L	all year	001
n-Decane	daily average	≤ 1.09 lb/d	all year	001
n-Decane	daily maximum	≤ 2.37 lb/d	all year	001
Carbazole	daily average	≤ .276 mg/L	all year	001
Carbazole	daily maximum	≤ .598 mg/L	all year	001
Carbazole	daily average	≤ .691 lb/d	all year	001
Carbazole	daily maximum	≤ 1.5 lb/d	all year	001
n-Octadecane	daily average	≤ .302 mg/L	all year	001
n-Octadecane	daily maximum	≤ .589 mg/L	all year	001
n-Octadecane	daily average	≤ .756 lb/d	all year	001
n-Octadecane	daily maximum	≤ 1.47 lb/d	all year	001
2-Butanone	daily average	≤ 1.85 mg/L	all year	001
2-Butanone	daily maximum	≤ 4.81 mg/L	all year	001
2-Butanone	daily average	≤ 4.63 lb/d	all year	001
2-Butanone	daily maximum	≤ 12 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 26 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 52 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily average	≤ 65 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 130 lb/d	all year	001
Acetone	daily average	≤ 7.97 mg/L	all year	001
Acetone	daily maximum	≤ 30.2 mg/L	all year	001
Acetone	daily average	≤ 20 lb/d	all year	001
Acetone	daily maximum	≤ 75.6 lb/d	all year	001
Acetophenone	daily average	≤ .056 mg/L	all year	001
Acetophenone	daily maximum	≤ .114 mg/L	all year	001
Acetophenone	daily average	≤ .141 lb/d	all year	001
Acetophenone	daily maximum	≤ .285 lb/d	all year	001
Whole effluent toxicity - retest #1	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #1	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #2	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #2	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia)	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia)	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia beryllina	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia beryllina	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia)	48-hour minimum	report only (%)	all year	TX1
NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
NOAEC Lethal Static Renewal 48HR Acute Menidia beryllina	48-hour minimum	report only (%)	all year	TX1
NOAEC Lethal Static Renewal 48HR Acute Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	48-hour minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Menidia beryllina	48-hour minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
Whole effluent toxicity - retest #1	single sample	report only (pass=0;fail=1)	all year	TXA
Whole effluent toxicity - retest #2	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Menidia beryllina	single sample	report only (pass=0;fail=1)	all year	TXA

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TX0030937 · MCP: https://passage-data.com/mcp