PlainWater
Counties → Maine

Penobscot County, Maine

Water Systems
168
Population Served
92,443
Total Violations
15,780
2,204 health-based
PFAS Detected
0
of 6 tested

Violation Analysis

93.5%
Systems with Violations
93.9
Avg Violations per System
14.0%
Health-Based Violations

Water Source Types

GW
44 systems (26%)
SW
6 systems (4%)

PFAS Contamination

6
Systems Tested
0
PFAS Detected
0.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Penobscot Maine water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (50)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Bangor Water District 27,298 8 Clean
Brewer Water Department 8,860 23 Clean
Old Town Water District 7,648 12 Clean
Orono-Veazie Water District 5,793 56 Clean
Maine Water Company Millinocket Division 5,400 30 Clean
Hampden Water District 4,628 14 Clean
Lincoln Water District 3,020 21 -
Dexter Utility District 2,338 38 -
East Millinocket Water Works 2,133 20 -
Newport Water District 1,900 375 -
Howland Water Department 1,025 40 -
Rsu 64 Central Middle & High School 615 68 -
Knifes Edge Brewing 604 42 -
Rsu 64 Central Community Elementary 550 37 -
Hermon High School 550 117 -
Glenburn Elem School 528 24 -
Mountain View Correctional Facility 468 47 -
Conley Events LLC 467 210 -
Center Drive School 450 266 -
Patricia a Duran School 430 99 -
Ksr-Camp Roosevelt 400 87 -
Cedar Haven Mhc 395 157 -
Hermon Middle School #2 350 69 -
Patten Water Dept 338 33 -
Pleasant Hill Campground 333 48 -
Big Moose Inn & Cabins/Cg 305 7 -
KOA Bangor RV LLC 300 58 -
Lee Academy #3 300 30 -
Anglers Restaurant 297 87 -
Pushaw Lake Campground 289 83 -
Moosehead Trail Campground 277 17 -
Lee Academy-Cobb Center 270 16 -
Msad 31 Enfield Station Elementary 266 34 -
Wilderness Edge Campground 258 19 -
Lee Academy #1 252 31 -
Rsu 63 Holbrook School 250 20 -
Katahdin Shadows Campground 250 13 -
Rsu 87 Suzanne M Smith Elem School 249 109 -
Rsu 87 Caravel Middle School 243 124 -
Cold River Campground 228 172 -
Twin Pine Camps LLC 225 29 -
Rsu 89 Katahdin Elementary 220 44 -
Paul Bunyan Campground 220 41 -
Pumpkin Patch RV Resort 213 25 -
Lakeshore Restaurant 210 48 -
Parks Pond Campground 202 38 -
Rsu 87 Carmel Elementary School 201 154 -
Cn Brown-Big Apple-Corinna #1077 200 124 -
Camp Pierce Webber-Upper 195 61 -
Shin Pond Pub LLC 195 241 -

Other Counties in Maine

Cumberland County
224 systems · 217,874 served · 17,731 violations
York County
190 systems · 164,445 served · 12,163 violations
Kennebec County
169 systems · 79,399 served · 9,772 violations
Androscoggin County
94 systems · 70,047 served · 4,940 violations
Hancock County
201 systems · 46,973 served · 21,298 violations
Aroostook County
124 systems · 40,588 served · 14,153 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Penobscot County? ▼
Penobscot County has 15,780 total drinking water violations across 168 water systems, of which 2,204 are health-based violations. 93.5% of systems have at least one violation.
How many people get water from Penobscot County systems? ▼
Water systems in Penobscot County serve approximately 92,443 people through 168 public water systems.
Has PFAS been detected in Penobscot County water? ▼
Of 6 water systems tested for PFAS in Penobscot County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Penobscot County? ▼
Water systems in Penobscot County use GW (44 systems), SW (6 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 14.0% of Penobscot County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

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

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.