PlainWater
Counties → Pennsylvania

Lehigh County, Pennsylvania

Water Systems
201
Population Served
294,981
Total Violations
15,405
1,835 health-based
PFAS Detected
10
of 11 tested

Violation Analysis

96.5%
Systems with Violations
76.6
Avg Violations per System
11.9%
Health-Based Violations

Water Source Types

GW
38 systems (19%)
SW
12 systems (6%)

PFAS Contamination

11
Systems Tested
10
PFAS Detected
90.9%
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

Lehigh Pennsylvania water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Lca Allentown Division 118,000 43 Detected
Lca Wlsa Central Division 47,693 283 Detected
Swt Main System 14,500 536 Detected
Emmaus Borough Public Water 14,000 319 Detected
Whitehall Twp Authority 13,063 369 Detected
Salisbury Twp Water System 8,522 13 Detected
Lv Hospital Cedar Crest 8,425 5 -
Upper Saucon Twp Water Supply 7,300 620 Detected
Catasauqua Mun Water Works 6,598 121 Detected
Slatington Borough Water Sys 4,450 112 Clean
Macungie Borough Authority 3,039 17 -
Lca North Whitehall Division 2,910 31 Detected
Coopersburg Mun Water Auth 2,570 203 -
Lehigh Carbon Community Colleg 2,500 255 -
Lehigh Career & Technical Inst 2,400 129 -
Alburtis Borough Authority 2,117 50 -
Desales University 2,000 54 -
Green Acres Mhc 1,475 88 -
Lca Arcadia West Division 1,392 56 -
Swt Allentown Cons System 1,300 49 -
Lca Emmaus Consecutive Div 1,046 0 -
Lca Washington Township Div 965 120 -
Nwlsd High School 821 130 -
Kernsville Elementary School 750 31 -
Nwlsd Middle School 681 113 -
Aqua PA Springhouse Farms 645 129 -
Nestle Purina Petcare Co 640 69 -
Kidspeace - Orchard Hills Camp 640 16 -
Lil Wolf MHP 600 63 -
Nwlsd Elementary School 582 48 -
Glencrest Mobile Home Park 570 134 -
Hanover Township Lehigh County 520 59 -
Lca Heidelberg Heights Div 509 414 -
Lehigh Cc Club House System 500 23 -
Ken-Man Water Co 475 1,377 -
Hometown Breakfast Bar & Grill 450 10 -
Peters Elementary School 426 238 -
Big Woodys 400 21 -
Shankweilers Drive in Theater 400 62 -
Yoccos South 400 13 -
Riverview Estates 375 169 -
Jordan United Church of Christ 350 20 -
Allentown Lehigh Valley KOA 340 56 -
Milford Bible Camp 300 22 -
St Pauls Ucc of Trexlertown 300 76 -
Lca Madison North Division 290 5 -
Aqua PA Country Club Gardens 268 48 -
Lca Upper Milford Central Div 256 29 -
Trivet Family Restaurant I 250 26 -
Lehigh Valley Zoo 250 23 -

Other Counties in Pennsylvania

Allegheny County
69 systems · 2,014,752 served · 5,241 violations
Philadelphia County
6 systems · 1,601,175 served · 447 violations
Montgomery County
172 systems · 1,274,688 served · 36,032 violations
Bucks County
299 systems · 599,107 served · 59,577 violations
Lancaster County
434 systems · 406,457 served · 39,193 violations
York County
208 systems · 389,602 served · 25,528 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Lehigh County? ▼
Lehigh County has 15,405 total drinking water violations across 201 water systems, of which 1,835 are health-based violations. 96.5% of systems have at least one violation.
How many people get water from Lehigh County systems? ▼
Water systems in Lehigh County serve approximately 294,981 people through 201 public water systems.
Has PFAS been detected in Lehigh County water? ▼
Of 11 water systems tested for PFAS in Lehigh County, 10 had PFAS detected (90.9% detection rate).
What types of water sources supply Lehigh County? ▼
Water systems in Lehigh County use GW (38 systems), SW (12 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. 11.9% of Lehigh 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.