Grays Harbor, WA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Grays Harbor in Washington · Population: 76,397
Grays Harbor, WA is tracked across three EPA datasets covering 7 Toxics Release Inventory (TRI) facilities, 34 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 41/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 3.1M lbs of reported toxic releases under EPCRA Section 313, while 10 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 20 and a peak AQI of 64 in 2024, with 96% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 353 (96%) | 13 | 0 | 64 |
| 2023 | 339 (93%) | 26 | 0 | 80 |
| 2022 | 340 (93%) | 24 | 1 | 112 |
| 2021 | 347 (95%) | 18 | 0 | 82 |
| 2020 | 330 (90%) | 28 | 1 | 242 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Washington, see the EPA's AirNow.gov.
Water Systems (34)
| System | Population | Violations |
|---|---|---|
| ABERDEEN CITY OF | 17,958 | 0 |
| HOQUIAM WATER DEPARTMENT | 11,456 | 0 |
| OCEAN SHORES WATER DEPT | 9,347 | 0 |
| ELMA CITY OF | 6,638 | 0 |
| MONTESANO CITY OF | 5,492 | 0 |
| WESTPORT WATER DEPARTMENT | 5,346 | 6 |
| GRAYS HARBOR CO WATER DIST 2 | 5,112 | 0 |
| MCCLEARY CITY OF | 2,753 | 0 |
| PACIFIC BEACH/MOCLIPS | 2,372 | 0 |
| TAHOLAH | 1,600 | 4 |
| Hogans Corner | 1,458 | 0 |
| OAKVILLE CITY OF | 1,325 | 0 |
| Lake Quinault | 1,003 | 0 |
| ILLAHEE OYEHUT | 971 | 0 |
| CHEHALIS TRIBAL HOUSING | 620 | 1 |
| GREENWOOD MOBILE HOME PARK | 240 | 0 |
| Ocean City | 237 | 0 |
| NEILTON MEADOWLAND WD 8 A | 222 | 1 |
| MEADOWOOD DEVELOPMENT | 220 | 0 |
| QUI NAI ELT VILLAGE | 207 | 4 |
| QUEETS | 200 | 10 |
| MONTE VIEW ESTATES | 200 | 0 |
| TAYLOR BAY BEACH CLUB INC | 175 | 2 |
| SEA VIEW | 170 | 3 |
| HAVEN BY THE SEA | 145 | 0 |
| RIVER HAVEN | 113 | 0 |
| SANTIAGO WATER ASSOCIATION | 95 | 6 |
| PARADISE WATER ASSOC | 74 | 0 |
| HARBOR MOBILE ESTATES | 72 | 0 |
| VIKINGS WEST MOBILE HOME | 71 | 0 |
| VOSPER PLACE SUBDIVISION | 68 | 1 |
| IRON SPRINGS PARK | 62 | 0 |
| RLS 1 | 38 | 0 |
| Ocosta Mobile Home Park LLC | 26 | 0 |
TRI Facilities (7)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Cosmo Specialty Fibers Inc. | 2.6M lbs |
| 2 | Paneltech | 209.2K lbs |
| 3 | Ascensus Specialties LLC | 121.0K lbs |
| 4 | Spi Aberdeen-Grays Harbor | 114.4K lbs |
| 5 | Reg Grays Harbor LLC | 38.9K lbs |
| 6 | Westport LLC | 15.6K lbs |
| 7 | Pacific Veneer | 1.1K lbs |
Cities in Grays Harbor (5)
Frequently Asked Questions
What is the environmental risk level in Grays Harbor, Washington? ▼
Are there Superfund sites in Grays Harbor? ▼
How many toxic release facilities are in Grays Harbor? ▼
What is the air quality in Grays Harbor? ▼
Is the drinking water safe in Grays Harbor? ▼
What environmental agencies cover Grays Harbor? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.