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San Juan, UT

Moderate Risk (40/100)

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 San Juan in Utah · Population: 14,466

TRI sites such as Reladyne West LLC; Moab Site Asphalt Plant Concrete Batch; SDWIS systems such as BLANDING CITY; MONTICELLO CITY; Monument Valley Utah Schools; NPL sites such as Monticello Mill Tailings (USDOE); Monticello Radioactively Contaminated Properties anchor San Juan, UT's EPA extract. Derived burden score 40/100 (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 San Juan include BLANDING CITY; Monument Valley Utah Schools; Monument Valley Mission - Hospital, while Reladyne West LLC leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 126 in 2024.

Burden score 40/100 (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 San Juan -- 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 San Juan, UT: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

-14.8%

2 facilities that filed in 2022 and 2023

Whole inventory

-14.8%

1.4 thousand lb → 1.2 thousand lb, every facility that filed

  • San Juan, UT's total reported releases fell from 1.4 thousand lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
  • San Juan, UT's air releases fell from 1.4 thousand lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
County population (Census ACS)
14,466
TRI Facilities
2
Water Systems
15
Superfund Sites
2
Total Releases
4.9K lbs

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 276 (78%) 77 3 126
2023 267 (75%) 90 0 87
2022 306 (84%) 59 0 87
2021 276 (76%) 86 2 115
2020 294 (81%) 67 2 119
2024 Good Air Quality: 78% of days
Unhealthy days: 3
Median AQI: 44

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 Utah, see the EPA's AirNow.gov.

Water Systems (15)

System System pop (SDWIS) Violations
BLANDING CITY 3,760 4
MONTICELLO CITY 2,393 0
Monument Valley Utah Schools 700 2
GLEN CANYON NRA - BULLFROG 690 0
BLUFF WATER WORKS SERVICE DISTRICT 430 0
Monument Valley Mission - Hospital 303 4
Gouldings Trading Post and Lodge 300 0
Aneth Community School BIA 192 5
GLEN CANYON NRA - HALLS CROSSING 190 0
ROCKLAND RANCH 175 5
EASTLAND SPECIAL SERVICE DISTRICT 90 0
PACK CREEK WATER COMPANY 75 6
TICABOO UTILITY IMPROVEMENT DISTRICT 73 1
MEXICAN HAT SSD 40 2
WILSON ARCH WATER & SEWER SSD 37 0

TRI Facilities (2)

# Facility Total Releases
1 Reladyne West LLC 4.9K lbs
2 Moab Site Asphalt Plant Concrete Batch 3 lbs

Superfund Sites (2)

Site Name Status HRS Score
Monticello Mill Tailings (USDOE) NPL Site 35.86
Monticello Radioactively Contaminated Properties Deleted NPL Site 35.03

Cities in San Juan (8)

Moab
1 facilities · 7 water
Blanding
1 facilities · 3 water
Monticello
0 facilities · 4 water
Bullfrog
0 facilities · 2 water
Monument Valley
0 facilities · 2 water
Bluff
0 facilities · 1 water
Lake Powell
0 facilities · 1 water
Montezuma Creek
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in San Juan, Utah? ▼
San Juan, UT has an environmental risk score of 40/100 (Moderate Risk), based on 2 TRI facilities, 2 Superfund sites, and 15 water systems on record. 8 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in San Juan? ▼
Yes, San Juan, UT has 2 Superfund sites on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in San Juan? ▼
San Juan, UT has 2 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 4.9K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in San Juan? ▼
In 2024, San Juan, UT recorded a median AQI of 44 and a peak AQI of 126. 78% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in San Juan? ▼
San Juan, UT has 15 EPA-regulated water systems. 8 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover San Juan? ▼
Environmental compliance in San Juan, Utah is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Utah state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

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.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro