Portage, OH
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 Portage in Ohio · Population: 161,421
TRI sites such as Trelleborg Seals & Profiles Americas; Custom Pultrusions Inc.; Harbisonwalker International Inc; SDWIS systems such as AKRON CITY PWS; KENT CITY PWS; RAVENNA CITY PWS; NPL sites such as Summit National anchor Portage, OH's EPA extract. Derived burden score 59/100 (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 Portage include AKRON CITY PWS; PORTAGE COUNTY WATER RESOURCES; HIRAM VILLAGE PWS, while Trelleborg Seals & Profiles Americas leads reported TRI pounds among local Form R filers. AQS median AQI 43 / peak 108 in 2024.
Burden score 59/100 (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 Portage -- 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 Portage, OH: EPA TRI 2023 reporting year
Same facilities, both years
+13.5%
26 facilities that filed in 2022 and 2023
Whole inventory
+13.5%
235.3 thousand lb → 267.1 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Portage, OH's total reported releases rose from 235.3 thousand lb in 2022 to 267.1 thousand lb in 2023, based on EPA TRI filings.
- Portage, OH's off-site transfers rose from 173.3 thousand lb in 2022 to 202.6 thousand lb in 2023, based on EPA TRI filings.
- Portage, OH's air releases rose from 62.0 thousand lb in 2022 to 64.4 thousand lb in 2023, based on EPA TRI filings.
- Portage, OH's chemicals reported fell from 33 in 2022 to 32 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 | 187 (76%) | 56 | 2 | 108 |
| 2023 | 178 (74%) | 60 | 2 | 159 |
| 2022 | 226 (80%) | 52 | 3 | 159 |
| 2021 | 205 (78%) | 57 | 1 | 108 |
| 2020 | 226 (86%) | 35 | 1 | 101 |
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 Ohio, see the EPA's AirNow.gov.
Water Systems (26)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| AKRON CITY PWS | 280,000 | 1 |
| KENT CITY PWS | 29,662 | 0 |
| RAVENNA CITY PWS | 16,000 | 0 |
| AURORA CITY - CLEVELAND PWS | 15,852 | 0 |
| STREETSBORO CITY PWS | 15,105 | 0 |
| PORTAGE COUNTY WATER RESOURCES | 8,606 | 5 |
| GARRETTSVILLE VILLAGE PWS | 2,325 | 0 |
| WINDHAM VILLAGE PWS | 1,777 | 0 |
| HIRAM VILLAGE PWS | 1,406 | 1 |
| PORTAGE COUNTY WR - MANTUA VILLAGE PWS | 1,207 | 0 |
| ALL SEASONS MHP | 498 | 0 |
| FOX RUN ESTATES PWS | 495 | 1 |
| MAPLE DEL MANOR LLC | 350 | 0 |
| PORTAGE COUNTY WR - RIVERMOOR | 339 | 0 |
| RANCH CLUB ESTATES WATER ASSOCIATION | 234 | 0 |
| NELSON LEDGES ESTATES MHP | 231 | 1 |
| BRIARWOOD ESTATES MHP | 222 | 0 |
| PM ESTATES PWS | 197 | 2 |
| AURORA CITY - PORTAGE PWS | 191 | 0 |
| SPRING LAKES MOBILE HOME PARK | 185 | 0 |
| HOMESTEAD MANOR MHP | 178 | 2 |
| JUST CRICKET CONDO ASSOCIATION | 178 | 0 |
| LINCOLN SQUARE APARTMENTS | 125 | 1 |
| BEECHWOOD ISLAND ESTATES | 122 | 0 |
| GREEN ACRES MHP | 80 | 1 |
| INN AT THE PINES ALF & MC | 50 | 0 |
TRI Facilities (28)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Summit National | NPL Site | 52.28 |
Cities in Portage (12)
Frequently Asked Questions
What is the environmental risk level in Portage, Ohio? ▼
Are there Superfund sites in Portage? ▼
How many toxic release facilities are in Portage? ▼
What is the air quality in Portage? ▼
Is the drinking water safe in Portage? ▼
What environmental agencies cover Portage? ▼
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.