TRI Facilities
8
EPCRA Section 313 reporters
2023 EPA TRI data 8 facilities 36 water systems
Northern Mariana Islands Environmental Profile
According to the U.S. Environmental Protection Agency's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List, this is Northern Mariana Islands's (MP) full public environmental-compliance record - toxic releases, drinking-water systems, and Superfund sites in one place.
MP regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
Clean Water Act, NPDES (water-system health violations)
13 records
- RCRA · Subtitle C 0
RCRA Subtitle C (Superfund-site proxy)
0 records
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
Water Systems
36
SDWIS regulated
Superfund Sites
0
0 active NPL
Total Releases
33.7K lbs
TRI cumulative disclosure
Compliance Snapshot - MP
Sites with no recorded health violations 70.5%
Sites with at least one open violation 29.5%
Northern Mariana Islands consolidates three federal EPA datasets into one statewide environmental profile: 8 Toxics Release Inventory (TRI) facilities reporting under EPCRA Section 313, 36 community water systems regulated under the Safe Drinking Water Act, and 0 sites on the Superfund National Priorities List.
TRI facilities in MP have cumulatively disclosed 33.7K lbs of toxic chemical releases, while SDWIS records show 165 total violations across the state's regulated water systems, of which 13 systems carry an active health-based violation (MCL exceedance or treatment-technique failure). Activity clusters in counties such as Saipan Municipality, Saipan, Tinian Municipality, which account for the highest combined facility, water-system, and Superfund presence.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
8
Water Systems
36
Superfund Sites
0
Total Violations
165
Total Releases
33.7K lbs
Health Violations
13
water systems
Largest Polluters
View all →| # | Facility | Total Releases |
|---|---|---|
| 1 | Commonwealth Utilities Corp (cuc) | 13.1K lbs |
| 2 | Mariana Acquistion Corp/saipan Terminal | 12.1K lbs |
| 3 | Mobil Oil Mariana Islands Inc (saipan Terminal) | 8.3K lbs |
| 4 | Mobil Oil Mariana Islands Inc (saipan Aviation Depot) | 58 lbs |
| 5 | Commonwealth Utilities Corp (cuc) | 13 lbs |
| 6 | Commonwealth Utilities Corp (cuc) | 13 lbs |
| 7 | Hawaiian Rock Products Road Paving | 12 lbs |
| 8 | Commonwealth Utilities Corp (cuc) | 8 lbs |
Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| Commonwealth Utilities Corp (Saipan) | 48,524 | 77 |
| Pacific Palms | 56 | 18 |
| Aqua Water | 170 | 16 |
| Crystal Ice And Water | 30 | 12 |
| Commonwealth Utilities Corp (Rota) | 2,504 | 9 |
| Diamond Water Gualo Rai | 55 | 7 |
| Modern Stationary | 60 | 6 |
| Commonwealth Utilities Corp (Tinian) | 3,005 | 5 |
| The Water Company | 310 | 4 |
| Afetna Supermarket | 40 | 4 |
| Tropical Drinking Water | 47 | 3 |
| Saipan Vegas | 100 | 2 |
| San Jose Mart Water | 130 | 2 |
Cities with Water Issues
Counties (6 total)
| County | Facilities |
|---|---|
| Saipan Municipality | 0 |
| Saipan | 6 |
| Tinian Municipality | 0 |
| Rota | 1 |
| Rota Municipality | 0 |
| Tinian | 1 |
Largest Cities
Saipan
Pop: -
6 facilities · 32 water systems
Rota
Pop: -
1 facilities · 1 water systems
Tinian
Pop: -
1 facilities · 2 water systems
Saipam
Pop: -
0 facilities · 1 water systems
Frequently Asked Questions
How many polluting facilities are in Northern Mariana Islands? ▼
Northern Mariana Islands has 8 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 33.7K lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Northern Mariana Islands have Superfund sites? ▼
Yes, Northern Mariana Islands has 0 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
Is the water safe in Northern Mariana Islands? ▼
Northern Mariana Islands has 36 EPA-regulated water systems. 13 water 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 data is available for Northern Mariana Islands? ▼
PlainEnviro provides three categories of EPA environmental data for Northern Mariana Islands: Toxic Release Inventory (TRI) data covering 8 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 36 water systems, and Superfund National Priorities List (NPL) data for 0 contaminated sites.
How does Northern Mariana Islands compare to other states environmentally? ▼
Northern Mariana Islands has 8 TRI facilities with 33.7K lbs in total releases, 0 Superfund sites, and 165 water system violations on record. State-level environmental comparisons depend on many factors including industrial activity, population, and geographic size. Source: EPA TRI, SDWIS, and Superfund NPL databases.
Explore More Data for Northern Mariana Islands
TRI Facilities in Northern Mariana Islands →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Northern Mariana Islands →
Community water systems and their violation records
Air Quality in Northern Mariana Islands →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Northern Mariana Islands: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Northern Mariana Islands's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 8 TRI facilities reporting in Northern Mariana Islands for the largest reported releases near a specific county. View facilities
- 13 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Northern Mariana Islands compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial
According to the U.S. Environmental Protection Agency, this state profile is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities, the Safe Drinking Water Information System, and the Superfund National Priorities List, compiled since federal reporting began under the Emergency Planning and Community Right-to-Know Act in October 1986; see our methodology for full source citations and refresh cadence.
Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. State environmental figures are computed directly from EPA data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.