Saipan Municipality, MP
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 Saipan Municipality in Northern Mariana Islands
TRI sites such as Commonwealth Utilities Corp (cuc); Mariana Acquistion Corp/saipan Terminal; Mobil Oil Mariana Islands Inc (saipan Terminal); SDWIS systems such as Commonwealth Utilities Corp (Saipan); Saipan Ice And Water; Commonwealth Utilities Corp (Tinian); NPL sites such as PCB Warehouse anchor Saipan Municipality, MP's EPA extract. Derived burden score 43/100 (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 Saipan Municipality include Commonwealth Utilities Corp (Saipan); Commonwealth Utilities Corp (Tinian); Commonwealth Utilities Corp (Rota), while Commonwealth Utilities Corp (cuc) leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 43/100 (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 Saipan Municipality -- 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 Saipan Municipality, MP: EPA TRI 2023 reporting year
Same facilities, both years
+27.0%
4 facilities that filed in 2022 and 2023
Whole inventory
+27.0%
4.7 thousand lb → 5.9 thousand lb, every facility that filed
- Saipan Municipality, MP's total reported releases rose from 4.7 thousand lb in 2022 to 5.9 thousand lb in 2023, based on EPA TRI filings.
- Saipan Municipality, MP's air releases rose from 4.7 thousand lb in 2022 to 5.9 thousand lb in 2023, based on EPA TRI filings.
Water Systems (33)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Commonwealth Utilities Corp (Saipan) | 48,524 | 80 |
| Saipan Ice And Water | 3,101 | 0 |
| Commonwealth Utilities Corp (Tinian) | 3,005 | 5 |
| Commonwealth Utilities Corp (Rota) | 2,504 | 9 |
| Star Water | 1,522 | 0 |
| Kensington Hotel | 634 | 0 |
| Pacific Islands Club | 554 | 0 |
| Finasisu Terrace Apartment | 393 | 0 |
| The Water Company | 310 | 4 |
| Marianas Ice And Water | 300 | 0 |
| Kensington Dormitory | 260 | 0 |
| Anaks Condominium | 243 | 0 |
| Lao Lao Bay Golf Resort | 200 | 0 |
| JG Sablan Ice And Water | 173 | 0 |
| Aqua Water | 170 | 16 |
| Diamond Ice And Water | 155 | 0 |
| Black Micro Corporation Tinian | 150 | 0 |
| San Jose Mart Water | 130 | 2 |
| Winners Residence | 124 | 0 |
| Saipan Vegas | 100 | 2 |
| Popz Purified Drinking Water | 100 | 0 |
| Xu Sunshine Corp | 79 | 0 |
| MSVillagomez Estate | 66 | 0 |
| Modern Stationary | 60 | 6 |
| Pacific Palms | 56 | 18 |
| 99 Cents Supermart Water | 55 | 0 |
| Diamond Water Gualo Rai | 55 | 7 |
| Hilltop Condominium | 51 | 0 |
| Tropical Drinking Water | 47 | 3 |
| CK Townhouse | 46 | 0 |
| Afetna Supermarket | 40 | 4 |
| Stanford Resort Hotel | 33 | 0 |
| Crystal Ice And Water | 30 | 12 |
TRI Facilities (6)
| # | 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 | Hawaiian Rock Products Road Paving | 12 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| PCB Warehouse | Deleted NPL Site | 0.00 |
Cities in Saipan Municipality (3)
Frequently Asked Questions
What is the environmental risk level in Saipan Municipality, Northern Mariana Islands? ▼
Are there Superfund sites in Saipan Municipality? ▼
How many toxic release facilities are in Saipan Municipality? ▼
What is the air quality in Saipan Municipality? ▼
Is the drinking water safe in Saipan Municipality? ▼
What environmental agencies cover Saipan Municipality? ▼
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.