Tapcensus

Pennsylvania

Mercer County drinking water quality

144 active public water systems serve 98,276 people in Mercer County. 54 are compliant, 90 had at least one EPA violation in the past three years, 2 are designated serious violators, and 7 carry a health flag.

Active systems 144 33 community systems
People served 98K by public water systems
Systems with violations 90 63% of active systems, past 3 years
Serious violators 2 7 systems carry a health flag

Needs attention

Grandview Acres MHP PA6430042 · Community water system · Serves 70 10 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR), Groundwater Rule (GWR), and Lead and Copper Rule (LCR).
Northstar Marina PA6431069 · Transient non-community system · Serves 50 3 rules violated in the past three years. Unresolved: E. coli (Escherichia coli), Public Notification Rule, and Revised Total Coliform Rule (RTCR).
Fredonia Boro PA6430036 · Community water system · Serves 443 3 rules violated in the past three years. Unresolved: Groundwater Rule (GWR).
Summit Estates PA6430074 · Community water system · Serves 72 3 rules violated in the past three years. Unresolved: Groundwater Rule (GWR) and Public Notification Rule.
Route 322 Mobile Home Park PA6430019 · Community water system · Serves 53 4 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR), Groundwater Rule (GWR), and Public Notification Rule.
Penn Power Clark Service Ctr PA6431011 · Non-Transient non-community system · Serves 50 3 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR) and Public Notification Rule.
Grove City Bowl O Drome PA6430856 · Transient non-community system · Serves 25 2 rules violated in the past three years. Unresolved: Groundwater Rule (GWR).

Community water systems

33 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Aqua PA Shenango Valley Wtp
 48,000 2 0
Aqua PA Greenville
 8,600 3 0
Grove City Boro Water Dept
 7,871 3 0
Sharpsville Boro Water CO
 5,029 0 0
Pine Twp Water Distr System
 3,082 2 0
Reynolds Water Company
 2,370 4 1
Buhl Community Water Company
 2,227 2 0
Aqua PA Lake Latonka Wtp
 1,600 0 0
Sandy Lake Boro
 1,100 5 0
ST Paul Homes
 1,000 1 0
Stoneboro Water Works
 956 5 0
Jamestown Boro Water Auth
 680 5 0
South Pymatuning
 641 0 0
Forrest Brooke MHP
 491 1 0
Fredonia Boro
 443 3 1
Pine Grove Mobile Home Park
 244 3 0
Greenville MHP
 150 3 1
Liberty Township
 138 0 0
Leesburg Water Association
 125 1 0
Glen Lake Estates
 94 6 0
Sunnyview Mobile Home Park
 88 4 1
Summit Estates
 72 3 1
Country Estates
 70 4 1
Grandview Acres MHP
 70 10 3
Cozy Oaks MHP
 65 3 0
Jefferson Estates MHP
 57 5 0
Greystone Country Estates
 55 2 0
Route 322 Mobile Home Park
 53 4 3
Pennwood Estates MHP
 51 6 0
Country Corner RV Park
 50 6 0
Scenic Mobile Home Park
 50 6 0
Liberty Acres MHP
 47 1 0
Hemlock Village MHP
 45 2 0
Non-community systems (111: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Plantation Park
 1,000 1 0
Shenango River Lake
 950 2 1
Vacationland Campground
 725 2 1
Commodore Perry School
 550 0 0
Adventure Bound Shenango
 500 1 0
PA Dot Rest Area 17
 500 0 0
PA Dot Rest Area 18
 500 0 0
RV Village
 400 3 1
Burger King #11027
 300 1 0
Cozy Oaks RV Resort
 300 2 0
Custaloga Town Scout Camp
 300 0 0
Mercer Grove City KOA
 300 3 1
Grove City Country Club
 250 0 0
Adesa Mercer
 225 0 0
Keystone Charter School
 225 0 0
Camp Nazareth
 200 2 1
Dollar Gen 8289 Stoneboro
 200 0 0
Last Minit Mart Jamestown
 200 2 0
Ilsco Extrusions
 175 2 0
Brass Lantern
 150 0 0
County Line Cafe
 150 0 0
Cool Springs Fitness
 125 0 0
Pine Hill Golf Course
 110 1 0
Bfs Foods# 52
 100 0 0
Clark House
 100 2 0
Delaware Twp Mun Bldg
 100 0 0
Granthams Landing
 100 1 0
James Stoner VFW Post 6233
 100 0 0
Jughandle (the)
 100 1 0
Keystone Safari
 100 0 0
Leo Mart
 100 0 0
Rachels Roadhouse
 100 0 0
Rainbow Valley Restaurant
 100 0 0
Rocky Springs Campground
 100 0 0
Rudys Restaurant
 100 1 0
Talbots Taproom and Terrace
 100 0 0
Tara Country Inn
 100 0 0
Temple Grove Campground
 100 0 0
Ull Scream
 100 0 0
Wagler Cottages
 100 2 0
Iron Bridge Inn
 95 0 0
Jerusalem Christian Church
 90 0 0
Camp Wilhelm
 75 2 1
Jackson Commerce Park W S
 75 8 0
Rodeway Inn
 68 2 0
Clark Borough Municipal Bldg
 60 0 0
Cup of Hope Cafe
 60 2 0
Rambling Acres
 60 0 0
Big Dog RC
 50 0 0
Colonial Inn Motel
 50 4 0
Controlled Molding INC
 50 1 0
Diehl Automotive of Grove City
 50 2 0
Greenville Area Sports Complex
 50 0 0
Greenville VFW Post 3374
 50 0 0
Jefferson Township Building
 50 3 1
Jets Eats and Treats
 50 1 0
Locust Grove
 50 2 0
Mercer Public Golf Course
 50 0 0
Northstar Marina
 50 3 2
Penn Power Clark Service Ctr
 50 3 1
Shandaggen Bar and Grill
 50 1 1
Shearers of Stoneboro
 50 2 0
Stanley Snyder VFW
 50 1 0
Stateline Bar & Grill
 50 1 0
The Jai-Alai
 50 1 0
Jubilee Daycare & Preschool
 45 2 1
Natl Fuel Gas Sharon Svc Ctr
 38 1 0
Charleston United Meth Church
 35 1 0
Liberty Lanes
 26 1 0
Amazing Grace Barn at Lakeside
 25 1 0
American Legion Post 220
 25 3 1
American Legion Post 919
 25 0 0
Big Rail Brewing
 25 1 0
Bridge Works Bar and Grill
 25 0 0
Celebrity Bowl
 25 1 0
Cianci Motel
 25 0 0
Clark Trinity United Methodist
 25 1 0
Compadres Mexican Restaurant
 25 0 0
Country Fair Store #44
 25 2 0
Creekside Country Store
 25 0 0
Dawns Deli
 25 4 0
Devs Camp Perry
 25 0 0
Dollar Gen 14900 Sheakleyville
 25 1 1
Dollar Gen 17753 Jackson Ctr
 25 0 0
Dollar Gen 18430 Fredonia
 25 0 0
Dollar Gen 4940 Grove City
 25 0 0
Dollar General 30215 Greenvill
 25 2 0
Dollar General 30279 Greenvill
 25 0 0
Dollar General New Wilm 10324
 25 1 0
Garage Bar and Grill
 25 2 0
Gmas Take Out Home Cooking
 25 1 0
Grove City Bowl O Drome
 25 2 1
Hempfield Township Park
 25 0 0
Hilltop Tavern
 25 2 0
M&l Market
 25 2 1
M&m Grocery
 25 0 0
Maurice K Goddard State Park
 25 0 0
McCulloughs Kitchen Table
 25 0 0
New NW Sales CO
 25 0 0
Oak Grove Church
 25 0 0
All 111 in the systems table
Inactive systems (262, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Pennsylvania records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.