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Superfund / NPL site · EPA Superfund SEMS through latest publishNPL Final

Mccormick & Baxter Creosoting Co.

This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight. Most-cited contaminant of concern: Naphthalene.

1214 W Washington St, Stockton, California · ZIP 95203 · EPA ID CAD009106527

See San Joaquin ContaminantsEquity contextHow we read Superfund data
CLEANUP TIMELINE

Listing-date and cleanup-phase enrichment from EPA's per-site SEMS profile is queued for a follow-up ingest pass. Until then, this section will populate from EPA's published timeline data.

Anomaly engine

Notable Signals

No notable signals at this Superfund site for the current ingest. Cleanup-phase and SEMS-action flags are deferred to a follow-up engineering pass.

Contaminants of concern · per EPA SEMS

What's In This Site

Each row pairs a contaminant with the medium it was found in (the exposure pathway). Hover any named contaminant for an agency-cited health-risk summary. Cited count = number of SEMS decision records (RODs and related) that name the pair.

ContaminantPathwayCited
NaphthaleneHealth riskIARC Group 2B possible carcinogen; causes hemolytic anemia, especially in infants. (IARC)Sediment2
1,2-DihydroacenaphthyleneSediment1
9H-FluoreneSediment1
AnthraceneSediment1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Groundwater1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Sediment1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Soil1
Benzo[A]PyreneHealth riskPAH; IARC Group 1 carcinogen; the prototypical PAH used to benchmark PAH-mixture cancer risk. EPA MCL 0.2 µg/L. (IARC, EPA)Groundwater1
Benzo[A]PyreneHealth riskPAH; IARC Group 1 carcinogen; the prototypical PAH used to benchmark PAH-mixture cancer risk. EPA MCL 0.2 µg/L. (IARC, EPA)Soil1
Dioxins (Chlorinated Dibenzodioxins)Groundwater1
Dioxins (Chlorinated Dibenzodioxins)Sediment1
Dioxins (Chlorinated Dibenzodioxins)Soil1
Dioxins And DibenzofuransSediment1
NaphthaleneHealth riskIARC Group 2B possible carcinogen; causes hemolytic anemia, especially in infants. (IARC)Groundwater1
PentachlorophenolHealth riskIARC Group 1 carcinogen; wood preservative; persistent in soil and groundwater. (IARC, EPA)Groundwater1
PentachlorophenolHealth riskIARC Group 1 carcinogen; wood preservative; persistent in soil and groundwater. (IARC, EPA)Sediment1
PentachlorophenolHealth riskIARC Group 1 carcinogen; wood preservative; persistent in soil and groundwater. (IARC, EPA)Soil1
Polycyclic Aromatic Hydrocarbons (Pahs)Health riskPAH class includes IARC Group 1 carcinogens (e.g., benzo[a]pyrene); long-term exposure raises cancer risk. (IARC, EPA)Sediment1
PyreneSediment1
Drinking-water linkage · SDWIS

Groundwater Systems Serving Communities Within 3 Miles

The 58 systems below draw on groundwater (or mixed sources) and serve communities whose centroid sits within 3 miles of this site. Distance is to the served-city centroid — SDWIS does not expose individual wellhead locations, so this is a proximity screen, not a wellhead-impact assessment.

Water systemServesDistancePopulation servedSourceStatus
Forest Point Mhc PrivateStockton2.0 mi62GROUNDWATERIn compliance
Bethel Island Mhc PrivateStockton2.0 mi185GROUNDWATERIn compliance
Gold Beach Park PrivateStockton2.0 mi134GROUNDWATER2 HEALTH-BASED · 5YR
Mary Lou Mobile Home Park PrivateStockton2.0 mi68GROUNDWATERIn compliance
15Th Avenue PrivateStockton2.0 mi50GROUNDWATERIn compliance
Cal 20 Village And Meadow Pointe Park PrivateStockton2.0 mi255GROUNDWATERIn compliance
Rough & Ready Village PrivateStockton2.0 mi268GROUNDWATERIn compliance
Quiet Oaks Mobile Home Park PrivateStockton2.0 mi120GROUNDWATERUNRESOLVED
Clements Water Works #43 MunicipalStockton2.0 mi264GROUNDWATERIn compliance
Morada Acres Water System MunicipalStockton2.0 mi105GROUNDWATERIn compliance
Almond Park Water System MunicipalStockton2.0 mi60GROUNDWATERIn compliance
Morada Manor Water System MunicipalStockton2.0 mi112GROUNDWATERIn compliance
Rancho San Joaquin Water Sys MunicipalStockton2.0 mi172GROUNDWATERIn compliance
Wine Country Apartments PrivateStockton2.0 mi40GROUNDWATERIn compliance
Gayla Manor Pws MunicipalStockton2.0 mi178GROUNDWATERIn compliance
Caribou Mobile Park Pws PrivateStockton2.0 mi180GROUNDWATERIn compliance
El Rio Mobile Home Park PrivateStockton2.0 mi60GROUNDWATERIn compliance
A1 Winstons Mobile Home Park PrivateStockton2.0 mi75GROUNDWATERUNRESOLVED
Big Wheel Mobile Home Park PrivateStockton2.0 mi120GROUNDWATER1 HEALTH-BASED · 5YR
Corral Hollow Pws MunicipalStockton2.0 mi145GROUNDWATERIn compliance
Shaded Terrace Pws MunicipalStockton2.0 mi238GROUNDWATERIn compliance
Morada Estates Pws MunicipalStockton2.0 mi290GROUNDWATERIn compliance
Elkhorn Estates Water System MunicipalStockton2.0 mi234GROUNDWATERIn compliance
V & P Trailer Court Water System PrivateStockton2.0 mi35GROUNDWATERUNRESOLVED
Wayside Motel Apartments Wtr Sys PrivateStockton2.0 mi70GROUNDWATERIn compliance
Bel Air Mobile Estate PrivateStockton2.0 mi325GROUNDWATERIn compliance
Spring Creek Estates Pws MunicipalStockton2.0 mi119GROUNDWATERIn compliance
Cherry Lane Trailer Park PrivateStockton2.0 mi100GROUNDWATERIn compliance
Twin Oaks Mobile Park PrivateStockton2.0 mi238GROUNDWATERIn compliance
Fairway Estates Pws Csa-18 MunicipalStockton2.0 mi149GROUNDWATERIn compliance
Mobile Villas Trailer Park PrivateStockton2.0 mi130GROUNDWATERIn compliance
San Joaquin Water Works #2 MunicipalStockton2.0 mi310GROUNDWATERIn compliance
Walnut Acres MunicipalStockton2.0 mi106GROUNDWATERIn compliance
King Island Trailer Park Water System PrivateStockton2.0 mi236GROUNDWATERIn compliance
Par Country Estates Csa-16 MunicipalStockton2.0 mi178GROUNDWATERIn compliance
San Juan Vista PrivateStockton2.0 mi201GROUNDWATERIn compliance
Santos Ranch Pws #5-Csa #35 MunicipalStockton2.0 mi320GROUNDWATERIn compliance
Acampo Water System MunicipalStockton2.0 mi231GROUNDWATERIn compliance
Enclave At The Delta PrivateStockton2.0 mi39GROUNDWATERIn compliance
Morada Estates N Pws #46 MunicipalStockton2.0 mi426GROUNDWATERIn compliance
Fairoaks Pws #44 MunicipalStockton2.0 mi1,172GROUNDWATERIn compliance
Fremont One PrivateStockton2.0 mi39GROUNDWATERUNRESOLVED
San Joaquin County - Thornton MunicipalStockton2.0 mi964GROUNDWATERIn compliance
San Joaquin County-Raymus Village MunicipalStockton2.0 mi1,086GROUNDWATERUNRESOLVED
San Joaquin County-Mokelumne Acres MunicipalStockton2.0 mi3,802GROUNDWATERIn compliance
Stockton Verde Mobile Home Park PrivateStockton2.0 mi711GROUNDWATERIn compliance
Oakwood Lake Water District-Subdivision MunicipalStockton2.0 mi1,479GROUNDWATERIn compliance
San Joaquin County - Wilkinson Manor MunicipalStockton2.0 mi851GROUNDWATERIn compliance
Amberwood Estates, Llc PrivateStockton2.0 mi120GROUNDWATERUNRESOLVED
Evergreen Mobile Estates PrivateStockton2.0 mi65GROUNDWATERIn compliance
Plaza Mobile Home Park PrivateStockton2.0 mi169GROUNDWATERUNRESOLVED
Western Mobile Home Park PrivateStockton2.0 mi178GROUNDWATERUNRESOLVED
Casa De Amigos Manufactured Housing Comm PrivateStockton2.0 mi204GROUNDWATERIn compliance
Mulberry Mhp PrivateStockton2.0 mi148GROUNDWATERUNRESOLVED
Del Rio East Hoa Water System PrivateStockton2.0 mi110GROUNDWATERUNRESOLVED
Security Mhp PrivateStockton2.0 mi150GROUNDWATERIn compliance
Reno Sahara Trailer Park PrivateStockton2.0 mi60GROUNDWATERIn compliance
Desert Mobile Home Estates PrivateStockton2.0 mi100GROUNDWATERIn compliance

Methodology: served-city centroid (TIGER 2020) is used as the PWS coordinate. Source-water classification from SDWIS primary_source_code; only groundwater and mixed-source systems are queried. Click any system above for its full SDWIS profile.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Near This Site

Within 1 mile of this site (8 Census block groups, population-weighted demographics): a population of 9,286. Why we surface this →

POPULATION SHARE
61.2%

Low-income

POPULATION SHARE
87.7%

People of color

POPULATION SHARE
6.7%

Under age 5

POPULATION SHARE
11.7%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 1-mile buffer around this site (from USEPA-clone/EJAM-open blockgroupstats). NPL site proximity contributes to the national EJ pattern; indicator-level percentile and disparity scores are surfaced on the county page and the state page.

Source. EPA Superfund Enterprise Management System (SEMS) · retrieved 2026-05-07. SEMS is a federal public-domain dataset under 17 USC §105.

What this is not. We report EPA's published Superfund record — site listing, status, and contaminants of concern as named in EPA's decision documents. We do not perform site visits, independent air or water sampling, or current-state health-risk assessment. NPL listing reflects EPA's Hazard Ranking Score at a point in time; it does not by itself describe present-day exposure.