PlainWater
Counties → Oklahoma

Delaware County, Oklahoma

Water Systems
37
Population Served
25,428
Total Violations
8,936
1,079 health-based
PFAS Detected
0
of 2 tested

Violation Analysis

100.0%
Systems with Violations
241.5
Avg Violations per System
12.1%
Health-Based Violations

Water Source Types

GW
22 systems (59%)
SW
15 systems (41%)

PFAS Contamination

2
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

Delaware Oklahoma water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (37)

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
Grove Municipal Services Auth. 7,311 70 Clean
Grand Lake PWA 2,800 362 -
Jay 2,482 154 -
Ketchum PWA Delaware Co System 1,805 43 -
South Delaware Co Regional Water Auth. 1,500 145 -
Delaware Co RWD #10 1,295 38 -
West Siloam Springs 877 130 -
Colcord PWA 819 168 -
Kansas Public Works Authority 802 66 -
Delaware Co RWD # 12 785 72 -
Delaware Co Rwsg&swm District 11 750 69 -
Delaware Co RWD # 3 653 492 -
Bernice PWA 504 464 -
Delaware Co RWD # 1 465 52 -
Seneca-Cayuga Nation 400 1,329 -
Delaware Co RWD # 7 400 98 Clean
Lakewood Village 293 430 -
Carriage Hills 160 73 -
Hickory Meadows 157 128 -
Leisure Shores Water System Assn, Inc 150 47 -
Holiday Shores Prop Assn 136 414 -
Spinnaker Point Estates 120 208 -
Coves at Bird Island 100 107 -
Harbors View Marina 100 141 -
Caair 100 346 -
Oak Ridge Estates I & II Water Assoc. 62 1,284 -
England Shores MHP 55 1,446 -
Tulsa Ozark Club 55 3 -
West Bay Property Assn 50 78 -
Smittys Resort 40 73 -
Cayuga Park Resort 40 23 -
New Life Ranch, Flint Valley 35 79 -
VFW Post 8380 35 31 -
Eagles Landing Resort 28 66 -
North Grand Mobile and RV Park 28 171 -
Grandview Village 24 24 -
Grand Country Lakeside RV & MHP 12 12 -

Other Counties in Oklahoma

Oklahoma County
121 systems · 889,384 served · 20,669 violations
Tulsa County
15 systems · 666,353 served · 1,073 violations
Cleveland County
73 systems · 216,341 served · 8,560 violations
Comanche County
25 systems · 137,288 served · 5,160 violations
Payne County
22 systems · 87,559 served · 2,865 violations
Rogers County
15 systems · 75,204 served · 2,062 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Delaware County? ▼
Delaware County has 8,936 total drinking water violations across 37 water systems, of which 1,079 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Delaware County systems? ▼
Water systems in Delaware County serve approximately 25,428 people through 37 public water systems.
Has PFAS been detected in Delaware County water? ▼
Of 2 water systems tested for PFAS in Delaware County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Delaware County? ▼
Water systems in Delaware County use GW (22 systems), SW (15 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. 12.1% of Delaware 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.