Lewis County, New York — public water systems
At a glance
67 active public water systems are filed under Lewis County, New York in EPA's SDWIS records, together reporting 16,454 people served. The largest is Lowville Village, which reports serving 4,000 people. 15 are community water systems serving people where they live; the other 52 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
67
Population served
16.5K
Community systems
15
Groundwater share
95.5%
How does Lewis County compare with other New York counties?
Lewis County has the 43rd-most active public water systems among the 100 counties listed for active New York systems in EPA records; among the 64 with 3 or more systems, the median has 94. Its systems report 16,454 people served in total, the 56th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 246 people, well below the New York average of 2,374. 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 Lewis County's drinking water come from?
By primary water source, Lewis County's active systems draw on groundwater (53, 79%), groundwater under influence of surface water (9, 13%), purchased groundwater (2, 3%) and surface water (2, 3%). Overall, 96% rely mainly on groundwater (including purchased groundwater) and 4.5% on surface water, compared with 91% and 8.5% across New York. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Lowville Village, draws primarily on surface water.
What kinds of water systems operate in Lewis County?
Lewis County's active systems break down as 15 community systems (22%), 1 non-transient non-community systems (1.5%) and 51 transient non-community systems (76%). 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 (75%), local government (22%) and state government (3%).
The 50 largest water systems in Lewis County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Lowville Village | Lewis | 4,000 | Community | Surface water |
| 2 | Croghan Village | Lewis | 900 | Community | Groundwater |
| 3 | Copenhagen Village | Lewis | 850 | Community | Groundwater under influence of surface water |
| 4 | Lyons Falls Village | Lewis | 850 | Community | Groundwater |
| 5 | Port Leyden Village | Lewis | 820 | Community | Groundwater |
| 6 | Beaver Falls Water District | Lewis | 782 | Community | Purchased groundwater |
| 7 | Harrisville (Diana Wd 1) | Lewis | 700 | Community | Groundwater |
| 8 | Natural Bridge Watertown Ny Koa | Lewis | 375 | Transient non-community | Groundwater |
| 9 | Turin Village | Lewis | 350 | Community | Groundwater |
| 10 | Denmark Wd 1 | Lewis | 350 | Community | Purchased groundwater |
| 11 | Lowville (T) Wd #1 | Lewis | 350 | Community | Purchased surface water |
| 12 | Castorland Village | Lewis | 320 | Community | Groundwater |
| 13 | Martinsburg Water District | Lewis | 310 | Community | Groundwater |
| 14 | Constableville Village | Lewis | 310 | Community | Surface water |
| 15 | Watson Town Wd 4 | Lewis | 300 | Community | Groundwater |
| 16 | Cedar Creek Campground | Lewis | 300 | Transient non-community | Groundwater under influence of surface water |
| 17 | Glenfield Water District | Lewis | 300 | Community | Groundwater |
| 18 | Whetstone Gulf State Park | Lewis | 250 | Transient non-community | Groundwater under influence of surface water |
| 19 | Aldersgate Camp and Retreat Center | Lewis | 220 | Transient non-community | Groundwater |
| 20 | Brantingham Golf Club,Inc. | Lewis | 200 | Transient non-community | Groundwater |
| 21 | Camp Unirondack | Lewis | 200 | Transient non-community | Groundwater |
| 22 | Lake Bonaparte Marina | Lewis | 200 | Transient non-community | Groundwater |
| 23 | Timberview Resort, Inc.. | Lewis | 200 | Transient non-community | Groundwater |
| 24 | Flat Rock Inn | Lewis | 200 | Transient non-community | Groundwater under influence of surface water |
| 25 | Cedar Pine | Lewis | 200 | Transient non-community | Groundwater |
| 26 | Babcocks Campground | Lewis | 175 | Transient non-community | Groundwater |
| 27 | Ridge View Motor Lodge, Inc.. | Lewis | 160 | Transient non-community | Groundwater |
| 28 | Beaver Camp and Motel | Lewis | 150 | Transient non-community | Groundwater |
| 29 | Oswegatchie Ffa Camp | Lewis | 128 | Transient non-community | Groundwater |
| 30 | Coachlight Inn | Lewis | 120 | Transient non-community | Groundwater |
| 31 | Kevins Tug Hill Hideaway | Lewis | 120 | Transient non-community | Groundwater |
| 32 | Carlowden Country Club | Lewis | 101 | Transient non-community | Groundwater under influence of surface water |
| 33 | Raven Acres Campground | Lewis | 100 | Transient non-community | Groundwater |
| 34 | Whiskey Jacks Crowfoot Hill Inn | Lewis | 80 | Transient non-community | Groundwater |
| 35 | Tuggers Bar & Grill/Campground | Lewis | 80 | Transient non-community | Groundwater under influence of surface water |
| 36 | Tug Hill Inn | Lewis | 75 | Transient non-community | Groundwater |
| 37 | Harrisville Rod & Gun Club,Inc. | Lewis | 75 | Transient non-community | Groundwater |
| 38 | Montague Inn Rest. & Motel | Lewis | 70 | Transient non-community | Groundwater under influence of surface water |
| 39 | Nys Dec - Dadville | Lewis | 60 | Transient non-community | Groundwater |
| 40 | Buckhorn Bar & Grill LLC (the) | Lewis | 60 | Transient non-community | Groundwater |
| 41 | Pine Tree Inn | Lewis | 60 | Transient non-community | Groundwater |
| 42 | Crossroads Tavern | Lewis | 54 | Transient non-community | Groundwater |
| 43 | Doyles Pub & Restaurant | Lewis | 50 | Transient non-community | Groundwater |
| 44 | Cedars Golf Course, Inc.. | Lewis | 50 | Transient non-community | Groundwater |
| 45 | Otter Creek Horse Trails | Lewis | 50 | Transient non-community | Groundwater |
| 46 | Brantingham Station LLC | Lewis | 50 | Transient non-community | Groundwater |
| 47 | Milk Plant Tavern | Lewis | 50 | Transient non-community | Groundwater |
| 48 | Highmarket Inn | Lewis | 50 | Transient non-community | Groundwater under influence of surface water |
| 49 | Brantingham Inn Motel | Lewis | 50 | Transient non-community | Groundwater |
| 50 | Belfort Inn | Lewis | 50 | Transient non-community | Groundwater |
All other water systems in Lewis County (17)
The remaining active systems filed under Lewis County, largest first, with the population each reports serving.
- World Famous Osceola Hotel, LLC50
- Card Campground, LLC50
- River Valley Inn - Lewis48
- Pond Effects Bar & Grill45
- Soft Maple Recreation Area44
- Stony Creek Country Store32
- East Road Adult Home30
- Dollar General (Glenfield)25
- Dollar General (Port Leyden)25
- Osceola Outpost Store25
- Singing Waters Campground25
- Twin Rivers Lyonsdale25
- Hill Top Market25
- High Voltage Cabins25
- Tug Hill Vineyards LLC25
- Barnes Corners General Store25
- Pioneer Cafe25
Lewis County water systems: frequently asked questions
How many public water systems are in Lewis County, New York?
EPA's SDWIS records file 67 active public water systems under Lewis County, New York: 15 community systems (22%), 1 non-transient non-community systems (1.5%) and 51 transient non-community systems (76%).
Who supplies drinking water in Lewis County, NY?
The largest community water systems filed under Lewis County are Lowville Village (4,000 people served), Croghan Village (900 people served) and Copenhagen Village (850 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 Lewis County's drinking water come from groundwater or surface water?
Of the 67 active public water systems in Lewis County, 96% draw mainly on groundwater and 4.5% on surface water, counting purchased supplies. The largest system, Lowville Village, uses surface water.
Where can I find a water quality report for Lewis 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. 15 community systems are filed under Lewis 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 Lewis 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 New York water systems
- All New York public water systems· 8,167 active
- Allegany County· 80 systems
- Chemung County· 77 systems
- Cortland County· 76 systems
- Albany County· 69 systems
- Yates County· 67 systems
- Schoharie County· 66 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 Lewis County, New York”, https://aquacensus.com/water-systems/new-york/lewis (data as of October 1, 2026).