Adams County, Pennsylvania — public water systems
At a glance
147 active public water systems are filed under Adams County, Pennsylvania in EPA's SDWIS records, together reporting 78,847 people served. The largest is Gettysburg Muni Auth, which reports serving 12,425 people. 30 are community water systems serving people where they live; the other 117 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
147
Population served
78.8K
Community systems
30
Groundwater share
98.6%
How does Adams County compare with other Pennsylvania counties?
Adams County has the 16th-most active public water systems among the 99 counties listed for active Pennsylvania systems in EPA records; among the 71 with 3 or more systems, the median has 76. Its systems report 78,847 people served in total, the 32nd-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 536 people, well below the Pennsylvania average of 1,741. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Adams County's drinking water come from?
By primary water source, Adams County's active systems draw on groundwater (145, 99%) and surface water (2, 1.4%). Overall, 99% rely mainly on groundwater (including purchased groundwater) and 1.4% on surface water, compared with 93% and 6.8% across Pennsylvania. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Gettysburg Muni Auth, draws primarily on surface water.
What kinds of water systems operate in Adams County?
Adams County's active systems break down as 30 community systems (20%), 26 non-transient non-community systems (18%) and 91 transient non-community systems (62%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (65%), public/private partnership (26%) and local government (9.5%).
The 50 largest water systems in Adams County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Gettysburg Muni Auth | Adams | 12,425 | Community | Surface water |
| 2 | Littlestown Boro | Adams | 7,300 | Community | Groundwater |
| 3 | Outlet Shops at Gettysburg | Adams | 6,500 | Non-transient non-community | Groundwater |
| 4 | New Oxford Munci Auth | Adams | 3,963 | Community | Surface water |
| 5 | Lake Meade Muni Auth | Adams | 3,221 | Community | Groundwater |
| 6 | Bonneauville Muni Water Auth | Adams | 2,730 | Community | Groundwater |
| 7 | Biglerville Water Co | Adams | 2,501 | Community | Groundwater |
| 8 | Bermudian Springs Sch Dist | Adams | 2,300 | Non-transient non-community | Groundwater |
| 9 | Fairfield Muni Auth | Adams | 2,150 | Community | Groundwater |
| 10 | Weis Markets East Berlin | Adams | 1,800 | Non-transient non-community | Groundwater |
| 11 | East Berlin Area Joint Auth | Adams | 1,750 | Community | Groundwater |
| 12 | Pa Amer Water Co Lake Heritage | Adams | 1,648 | Community | Groundwater |
| 13 | Arendtsville Muni Water Sys | Adams | 1,200 | Community | Groundwater |
| 14 | York Springs Muni Water | Adams | 1,095 | Community | Groundwater |
| 15 | Bendersville Muni Auth | Adams | 1,039 | Community | Groundwater |
| 16 | Rutters Store 17 | Adams | 1,000 | Transient non-community | Groundwater |
| 17 | Ski Liberty | Adams | 1,000 | Non-transient non-community | Groundwater |
| 18 | Granite Hill Campground | Adams | 950 | Transient non-community | Groundwater |
| 19 | Rutters Store 36 | Adams | 900 | Transient non-community | Groundwater |
| 20 | Gettysburg Cpgrd | Adams | 800 | Transient non-community | Groundwater |
| 21 | Possum Valley Muni Auth | Adams | 800 | Community | Groundwater |
| 22 | Eisenhower Water Supply | Adams | 760 | Community | Groundwater |
| 23 | Harvest Chapel | Adams | 600 | Transient non-community | Groundwater |
| 24 | Gettysburg Sunoco 2709 | Adams | 500 | Transient non-community | Groundwater |
| 25 | Gettysburg National Golf Club | Adams | 500 | Transient non-community | Groundwater |
| 26 | Freedom Valley Worship Ctr | Adams | 500 | Non-transient non-community | Groundwater |
| 27 | Gettysburg Battlefield Resort | Adams | 500 | Transient non-community | Groundwater |
| 28 | Adams Cnty Fac Ctr | Adams | 456 | Community | Groundwater |
| 29 | Bethel Assembly of God Ltown | Adams | 450 | Transient non-community | Groundwater |
| 30 | Amblebrook | Adams | 450 | Community | Groundwater |
| 31 | Franklin Twp Muni Auth | Adams | 441 | Community | Groundwater |
| 32 | Conewago Cpgd | Adams | 400 | Transient non-community | Groundwater |
| 33 | Frontier Bar B Q | Adams | 400 | Transient non-community | Groundwater |
| 34 | Artillery Ridge Cpgrd | Adams | 400 | Transient non-community | Groundwater |
| 35 | Aqua Pa Links at Gettysburg Sy | Adams | 398 | Community | Groundwater |
| 36 | Knouse Foods Inc. Peach Glen | Adams | 340 | Non-transient non-community | Groundwater |
| 37 | Dave & Janes | Adams | 325 | Transient non-community | Groundwater |
| 38 | Knouse Foods Inc. Orrtanna | Adams | 316 | Non-transient non-community | Groundwater |
| 39 | Gettysburg Montessori School | Adams | 308 | Non-transient non-community | Groundwater |
| 40 | Gettysburg K O A | Adams | 300 | Transient non-community | Groundwater |
| 41 | Camp Nawakwa | Adams | 300 | Transient non-community | Groundwater |
| 42 | Crabbs Tropical Treat | Adams | 300 | Transient non-community | Groundwater |
| 43 | Church of Jesus Christ of LDS | Adams | 300 | Transient non-community | Groundwater |
| 44 | Wendys at Cross Keys Center | Adams | 300 | Transient non-community | Groundwater |
| 45 | 910 Bj LLC | Adams | 300 | Transient non-community | Groundwater |
| 46 | Barlow Fire Dept | Adams | 300 | Transient non-community | Groundwater |
| 47 | Anchor Estates | Adams | 300 | Community | Groundwater |
| 48 | Jen Jens Rhythm N Brews | Adams | 300 | Transient non-community | Groundwater |
| 49 | Gettysburg Hampton Inn | Adams | 300 | Transient non-community | Groundwater |
| 50 | Western Cumberland Water Sys | Adams | 275 | Community | Groundwater |
All other water systems in Adams County (97)
The remaining active systems filed under Adams County, largest first, with the population each reports serving.
- Hoffman Homes for Youths Inc.270
- Carroll Valley Water System267
- Cross Keys Shopping Ctr250
- Gettysburg Baptist Ch250
- Paramount Senior Living250
- Pdq Food Mart250
- Oak Village225
- Hollabaugh Bros Retail Market200
- Flatbush Gc200
- First Baptist Ch200
- Eng Congr of Jehov Witness Gbg200
- Hickory Bridge Farm200
- Sunoco Travel Center200
- Freedom Auto Auction200
- Lower Marsh Creek Preb Ch200
- Mountain View MHP180
- Rice Fruit Co177
- Quail Valley Gc175
- Adams Cnty Christian Academy163
- Specialty Granules Inc.151
- St Marys Catholic Church150
- Frat Order of the Eagles 2226150
- Sanders Square150
- Christ United Church of Christ150
- Bourbon at the Mill150
- Camp Happy Valley/Camp Skyloft150
- Eastern Cumberland Water Sys150
- Cameo Drive in150
- C&D Bar & Grill150
- Bridges Gc150
- Apple Bin Grill & Bakery150
- Hunterstown Diner150
- Gpg Learning Academy136
- Idaville Ub in Christ Ch130
- Dal-Tile Corporation125
- Earles Inn125
- Lodges at Gettysburg125
- Castle Hill MHP120
- Gettysburg Church of Christ115
- Hobby Horse Cafe100
- Sensations Bar & Grill100
- Little Life Enrichment Ctr100
- Olivias Restaurant Inc.100
- Camp Eder100
- Pine Ridge Campground100
- Amvets Post 172100
- M&Gs Ice Cream and Italian Ice100
- Rockwell Lanes100
- Blue Ridge Sportsmens Club100
- Jd & Sons100
- Morning Hour Chapel90
- First Baptist Ch of Littlestow80
- Cavalry Heights MHP80
- Yiannis Greenwood Tavern80
- Dr Peter Samuels Office80
- Flohrs Evan Luth Ch80
- Ciao Bella80
- Woodlands Camp J B Peters Inc.80
- Pizza Leone75
- Open Arms Christian Fellowship75
- Taverna 545075
- Split Shots Bar & Grill75
- Gbg Seventh Day Adventist Ch75
- 48forty Solutions75
- Panorama MHP70
- Little Italy V70
- Incredible Kid Academy60
- Gettysburg Hunting & Camping60
- Good News Church of Ortanna60
- Hillside Rest Home Inc.58
- Morton Buildings Inc.55
- Colonels Creek Cpgrd50
- Herr Tavern50
- Red Carpet Inn50
- El Rancho Grande50
- Butcher Block50
- Hillandale Gettysburg Site 245
- Babes in Arms44
- R & L Orchard Co43
- R & L 340
- Fellowship Baptist Ch40
- Hollabaugh Brothers39
- Brookview Lodge36
- Adams Rescue Mission35
- Bethel Mennonite Ch35
- Blue Sky Motel32
- Psp Barracks Gettysburg30
- Two Mile Inn30
- Hunterstown Generation LLC30
- Pape Camp30
- Hillandale Gettysburg Site 328
- Hillandale Site 526
- Hillandale Gettysburg Site 126
- Lerew Red Barn Orchard25
- Sew N Place25
- Gallo Pizza Italian Restaurant25
- Orvis Hill Country25
Adams County water systems: frequently asked questions
How many public water systems are in Adams County, Pennsylvania?
EPA's SDWIS records file 147 active public water systems under Adams County, Pennsylvania: 30 community systems (20%), 26 non-transient non-community systems (18%) and 91 transient non-community systems (62%).
Who supplies drinking water in Adams County, PA?
The largest community water systems filed under Adams County are Gettysburg Muni Auth (12,425 people served), Littlestown Boro (7,300 people served) and New Oxford Munci Auth (3,963 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Adams County's drinking water come from groundwater or surface water?
Of the 147 active public water systems in Adams County, 99% draw mainly on groundwater and 1.4% on surface water, counting purchased supplies. The largest system, Gettysburg Muni Auth, uses surface water.
Where can I find a water quality report for Adams County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 30 community systems are filed under Adams County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Adams County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Pennsylvania water systems
- All Pennsylvania public water systems· 7,217 active
- Schuylkill County· 176 systems
- Montgomery County· 166 systems
- Crawford County· 163 systems
- Butler County· 155 systems
- Carbon County· 143 systems
- Erie County· 134 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Adams County, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/adams (data as of October 1, 2026).