Grant, WA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Grant in Washington · Population: 100,428
TRI sites such as Amway Nutrilite; Simplot U.S. Food Group Holdings Llc.; Moses Lake Industries Inc; SDWIS systems such as MOSES LAKE CITY OF; EPHRATA WATER DEPARTMENT; QUINCY WATER DEPARTMENT CITY OF; NPL sites such as Moses Lake Wellfield Contamination anchor Grant, WA's EPA extract. Derived burden score 46/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Grant include Mattawa City of; WARDEN CITY OF; WEILER-MARTIN TRACTS WATER ASSN, while Amway Nutrilite leads reported TRI pounds among local Form R filers. AQS median AQI 26 / peak 84 in 2024.
Burden score 46/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Grant -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Grant, WA: EPA TRI 2023 reporting year
Same facilities, both years
-27.5%
11 facilities that filed in 2022 and 2023
Whole inventory
-27.5%
323.5 thousand lb → 234.6 thousand lb, every facility that filed
- Grant, WA's total reported releases fell from 323.5 thousand lb in 2022 to 234.6 thousand lb in 2023, based on EPA TRI filings.
- Grant, WA's land releases rose from 1.0 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
- Grant, WA's off-site transfers fell from 265.1 thousand lb in 2022 to 180.1 thousand lb in 2023, based on EPA TRI filings.
- Grant, WA's air releases fell from 57.4 thousand lb in 2022 to 51.2 thousand lb in 2023, based on EPA TRI filings.
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 | 318 (87%) | 48 | 0 | 84 |
| 2023 | 300 (82%) | 59 | 3 | 301 |
| 2022 | 279 (76%) | 83 | 0 | 165 |
| 2021 | 310 (85%) | 49 | 1 | 202 |
| 2020 | 325 (89%) | 31 | 2 | 316 |
Source: 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 (65)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| MOSES LAKE CITY OF | 32,428 | 0 |
| EPHRATA WATER DEPARTMENT | 8,718 | 0 |
| QUINCY WATER DEPARTMENT CITY OF | 8,415 | 0 |
| Mattawa City of | 5,370 | 4 |
| WARDEN CITY OF | 4,674 | 1 |
| ROYAL CITY WATER | 3,389 | 0 |
| DESERT AIRE OWNER ASSN | 2,856 | 0 |
| SOAP LAKE WATER DEPT | 2,399 | 0 |
| ELECTRIC CITY CITY OF | 1,812 | 0 |
| SUNLAND ESTATES HOMEOWNERS ASSN | 1,480 | 0 |
| LAKEVIEW PARK WATER ASSN | 1,259 | 0 |
| WEILER-MARTIN TRACTS WATER ASSN | 1,163 | 1 |
| CRESCENT BAR SYSTEM | 1,108 | 0 |
| GEORGE CITY OF | 1,035 | 0 |
| SUNSERRA AT CRESCENT BAR | 1,000 | 0 |
| WILSON CREEK WATER DEPT TOWN OF | 386 | 0 |
| CASCADE VALLEY WATER DISTRICT | 379 | 0 |
| GOLDEN PLAINS MHP #1 | 360 | 0 |
| STRATFORD ROAD ESTATES | 312 | 0 |
| HILLCREST WATER USERS ASSN | 300 | 0 |
| SKYLINE WATER SYSTEM INC | 293 | 0 |
| PARKER SPRING ACRES WATER ASSOC | 255 | 30 |
| SUNRISE WATER ASSOCIATION | 250 | 0 |
| CRESCENT VIEW CONDOMINIUM OWNERS | 243 | 0 |
| RIDGEVIEW ESTATES WATER ASSOCIATION | 240 | 0 |
| SENTINEL GAP WATER ASSN | 226 | 0 |
| GROVE TERRACE MHP TWO LLC | 220 | 0 |
| Saddle Mountain Water Assoc. | 219 | 1 |
| WESTMONT ACRES | 206 | 0 |
| COUNTRY CLUB ESTATES WATER SYSTEM | 186 | 0 |
| WARDEN HUTTERIAN BRETHREN 1 | 171 | 0 |
| Westshore Water Company | 153 | 0 |
| SKYLINE ACRES INC | 151 | 0 |
| The Village at Colockum Ridge | 144 | 0 |
| GOLDEN VALLEY WATER ASSN | 138 | 19 |
| MARLIN HUTTERIAN | 134 | 2 |
| BEVERLY WATER DISTRICT | 120 | 5 |
| HATTON TOWN OF | 105 | 0 |
| SUNBURST ESTATES WATER ASSN | 100 | 0 |
| FIRST POTHOLES WATER USERS ASSN | 90 | 0 |
| Viking Road Water System | 88 | 0 |
| MARINE VIEW HOME OWNERS ASSN | 87 | 0 |
| HI LO HOMEOWNERS ASSN | 87 | 0 |
| SECT 11 DIV 1 Ridgeview Water Assn | 79 | 0 |
| ADMIRAL WATER USERS ASSN | 74 | 0 |
| PAINTED HILLS WATER ASSOCIATION | 70 | 0 |
| RAINIER TRACTS WATER ASSN | 61 | 0 |
| SUNSET ACRES WATER ASSN | 61 | 0 |
| WANAPUM INDIAN VILLAGE | 60 | 0 |
| MT VIEW WATER SYSTEM | 44 | 9 |
| FORDAIR WATER CO-OP INC | 43 | 0 |
| SUNSET ACRES WATER ASSOCIATION | 40 | 0 |
| SAGE HILLS ESTATES 1 | 38 | 0 |
| Malaga Market | 38 | 0 |
| SILVER SANDS CONDO WATER | 37 | 0 |
| SAGE HILLS SECOND WATER SYSTEM | 34 | 0 |
| SUNRISE ESTATES WATER SYSTEM | 33 | 85 |
| ORCHARD HOMES WATER SYSTEM | 31 | 0 |
| LAKE RIDGE HILLS WATER ASSN | 30 | 0 |
| MAPLES PLAT WATER SYSTEM | 30 | 0 |
| Desert Hills | 30 | 0 |
| Lyons Water System | 28 | 0 |
| COUNTRY LANE EAST | 27 | 0 |
| SUN DESERT INC | 27 | 0 |
| PARK ORCHARD TRACT 40 | 25 | 0 |
TRI Facilities (13)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Amway Nutrilite | 534.1K lbs |
| 2 | Simplot U.S. Food Group Holdings Llc. | 349.3K lbs |
| 3 | Moses Lake Industries Inc | 152.6K lbs |
| 4 | Sgl Composites LLC | 118.9K lbs |
| 5 | Terex Washington Awp Div Genie Industries | 29.7K lbs |
| 6 | D&l Foundry Inc | 18.1K lbs |
| 7 | Joyson Safety Systems Acquisition LLC | 17.2K lbs |
| 8 | Central Washington Concrete - Quincy | 4.7K lbs |
| 9 | Lamb Weston Inc | 4.3K lbs |
| 10 | Performix Nutrition Systems LLC | 1.8K lbs |
| 11 | Central Washington Concrete Ephrata | 892 lbs |
| 12 | Rec Solar Grade Silicon | 385 lbs |
| 13 | Boeing A&m Moses Lake | 158 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Moses Lake Wellfield Contamination | NPL Site | 50.00 |
Cities in Grant (12)
Frequently Asked Questions
What is the environmental risk level in Grant, Washington? ▼
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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.