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Dover Chemical Corporation

Industrial Organic Chemicals, major discharger, Dover, Ohio. NPDES permit OH0007269, in force until Sep 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 002 form A monthly (51 values), outfall 802 form A monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (61)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Solids, total suspendedmonthly average≤ 9 mg/Lall year002
Solids, total suspendeddaily maximum≤ 18 mg/Lall year002
Solids, total suspendedmonthly average≤ 153 kg/dall year002
Solids, total suspendeddaily maximum≤ 307 kg/dall year002
Oil and grease, hexane extr methoddaily maximum≤ 9 mg/Lall year002
Oil and grease, hexane extr methoddaily maximum≤ 153 kg/dall year002
Carbon tetrachloridedaily maximum≤ 44 ug/Lall year002
Carbon tetrachloridedaily maximum≤ .75 kg/dall year002
Chloroformmonthly average≤ 44 ug/Lall year002
Chloroformdaily maximum≤ 67 ug/Lall year002
Chloroformmonthly average≤ .75 kg/dall year002
Chloroformdaily maximum≤ 1.15 kg/dall year002
.alpha.-BHC dissolvedmonthly average≤ .13 ug/Lall year002
.alpha.-BHC dissolvedmonthly average≤ .0024 kg/dall year002
.beta.-BHC, dissolvedmonthly averagereport only (ug/L)all year002
.beta.-BHC, dissolveddaily maximumreport only (ug/L)all year002
4,4'-DDTmonthly averagereport only (ug/L)all year002
4,4'-DDTdaily maximumreport only (ug/L)all year002
4,4'-DDDmonthly averagereport only (ug/L)all year002
4,4'-DDDdaily maximumreport only (ug/L)all year002
4,4'-DDEmonthly averagereport only (ug/L)all year002
4,4'-DDEdaily maximumreport only (ug/L)all year002
Aldrinmonthly averagereport only (ug/L)all year002
Aldrindaily maximumreport only (ug/L)all year002
Dieldrinmonthly averagereport only (ug/L)all year002
Dieldrindaily maximumreport only (ug/L)all year002
Heptachlormonthly average≤ .036 ug/Lall year002
Heptachlormonthly average≤ .00065 kg/dall year002
Polychlorinated biphenyls [PCBs]monthly average≤ .0017 ug/Lall year002
Polychlorinated biphenyls [PCBs]monthly average≤ .000031 kg/dall year002
Hexachlorobenzenemonthly average≤ .0077 ug/Lall year002
Hexachlorobenzenemonthly average≤ .00014 kg/dall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualmonthly average≤ .016 mg/Lall year002
Chlorine, total residualdaily maximum≤ .025 mg/Lall year002
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)Mar, Jun, Sep, Dec002
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)Mar, Jun, Sep, Dec002
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Mar, Jun, Sep, Dec002
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Mar, Jun, Sep, Dec002
pH, maximumdaily maximumreport only (SU)all year002
pH, minimumdaily minimumreport only (SU)all year002
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year002
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year002
Chlorinated hydrocarbons, generalmonthly averagereport only (ug/L)all year002
Chlorinated hydrocarbons, generaldaily maximumreport only (ug/L)all year002
Chlorinated dibenzo-p-dioxins, effluentmonthly average≤ .14 pg/Lall year002
pH range excursions, > 60 minutesdaily maximum≤ 0 occur/dall year002
pH range excursions, monthly total accumdaily maximum≤ 446 minall year002
Temperature, water deg. centigrademonthly averagereport only (deg C)Mar, Jun, Sep, Dec802
Temperature, water deg. centigradedaily maximumreport only (deg C)Mar, Jun, Sep, Dec802
Conductivitymonthly averagereport only (umho/cm)Mar, Jun, Sep, Dec802
Conductivitydaily maximumreport only (umho/cm)Mar, Jun, Sep, Dec802
pHdaily minimumreport only (SU)Mar, Jun, Sep, Dec802
pHdaily maximumreport only (SU)Mar, Jun, Sep, Dec802
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiamonthly averagereport only (%)Mar, Jun, Sep, Dec802
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)Mar, Jun, Sep, Dec802
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Mar, Jun, Sep, Dec802
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Mar, Jun, Sep, Dec802

New limits from Oct 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
.alpha.-BHC dissolved, monthly average0.000075 kg/dtighter0.0004295 kg/d (12 values)5.73×
.alpha.-BHC dissolved, monthly average0.0039 ug/Ltighter0.0255 ug/L (12 values)6.54×
Heptachlor, monthly average0.0000089 kg/dtighter——
Heptachlor, monthly average0.00046 ug/Ltighter——
Hexachlorobenzene, monthly average0.00079 ug/Ltighter——
Hexachlorobenzene, monthly average0.000015 kg/dtighter——
Polychlorinated biphenyls [PCBs], monthly average0.000012 kg/dtighter——
Polychlorinated biphenyls [PCBs], monthly average0.00064 ug/Ltighter——

How strict are these limits?

Cited limits by parameter: Ohio's rules and the federal ones.

Same industry: the 68 Chemicals and Allied Products permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0007269 · MCP: https://passage-data.com/mcp