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Hamilton County, New York — public water systems

At a glance

84 active public water systems are filed under Hamilton County, New York in EPA's SDWIS records, together reporting 14,324 people served. The largest is Speculator V, which reports serving 2,008 people. 7 are community water systems serving people where they live; the other 77 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

84

Population served

14.3K

Community systems

7

Groundwater share

96.4%

How does Hamilton County compare with other New York counties?

Hamilton County has the 38th-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 14,324 people served in total, the 57th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 171 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 Hamilton County's drinking water come from?

By primary water source, Hamilton County's active systems draw on groundwater (81, 96%) and surface water (3, 3.6%). Overall, 96% rely mainly on groundwater (including purchased groundwater) and 3.6% 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, Speculator V, draws primarily on groundwater.

What kinds of water systems operate in Hamilton County?

Hamilton County's active systems break down as 7 community systems (8.3%), 1 non-transient non-community systems (1.2%) and 76 transient non-community systems (90%). 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 (74%), state government (15%) and local government (11%).

The 50 largest water systems in Hamilton County

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Active public water systems in Hamilton County, New York
#Water systemCountyPopulation servedTypeSource
1Speculator VHamilton2,008CommunityGroundwater
2Nys-Sacandaga CampsiteHamilton1,350Transient non-communityGroundwater
3Moffitt Beach SpcHamilton900Transient non-communityGroundwater
4Indian Lake WdHamilton900CommunityGroundwater
5Lewey Lake SpcHamilton836Transient non-communityGroundwater
6Long Lake WdHamilton800CommunitySurface water
7Limekiln Lake SpcHamilton500Transient non-communityGroundwater
8Wells WdHamilton450CommunityGroundwater
9Half Moon Beach, Inc..Hamilton400Transient non-communityGroundwater
10Blue Mt Lake WdHamilton400CommunitySurface water
11Forked Lake SpcHamilton300Transient non-communityGroundwater
12Eighth Lake SpcHamilton300Transient non-communityGroundwater
13Fowler Camp & Conf CenterHamilton250Transient non-communityGroundwater
14Little Sand Point SpcHamilton250Transient non-communityGroundwater
15Point Comfort SpcHamilton250Transient non-communityGroundwater
16Lake Durant SpcHamilton240Transient non-communityGroundwater
17Golden Beach SpcHamilton200Transient non-communityGroundwater
18Arrowhead ParkHamilton142Transient non-communityGroundwater
19Evergreen Lake, Inc..Hamilton140Transient non-communityGroundwater
20The Inn on Piseco LakeHamilton136Transient non-communityGroundwater
21Deming Lakeside Trailer ParkHamilton124Transient non-communityGroundwater
22Snow Lake Water SupplyHamilton120Transient non-communityGroundwater
23Lake Pleasant Park Inc.Hamilton103Transient non-communityGroundwater
24Sagamore LodgeHamilton100Transient non-communityGroundwater
25Nacodi CampsitesHamilton100Transient non-communityGroundwater
26Tony Harpers InletHamilton100Transient non-communityGroundwater
27The BirchesHamilton100Transient non-communityGroundwater
28Brown Tract Ponds SpcHamilton100Transient non-communityGroundwater
29Thornbush Acres Rv ParkHamilton100Transient non-communityGroundwater
30BurkesHamilton100Transient non-communityGroundwater
31Raquette Lake WdHamilton90CommunityGroundwater
32Seventh Lake HouseHamilton90Transient non-communityGroundwater
33Rocky Point Homeowners AssnHamilton80CommunityGroundwater
34Camp Huntington - CortlandHamilton80Transient non-communitySurface water
35Alpine, theHamilton80Transient non-communityGroundwater
36Lake Eaton SpcHamilton80Transient non-communityGroundwater
37Black Bear LodgesHamilton80Transient non-communityGroundwater
38Oxbow InnHamilton75Transient non-communityGroundwater
39Lapland LakeHamilton70Transient non-communityGroundwater
40Timberlock CampHamilton66Transient non-communityGroundwater
41Marina MotelHamilton64Transient non-communityGroundwater
42Deer MeadowsHamilton61Transient non-communityGroundwater
43Forever Wild Bar & Grill, theHamilton60Transient non-communityGroundwater
44Northwoods LodgeHamilton60Transient non-communityGroundwater
45Oxbow Lake MotelHamilton60Transient non-communityGroundwater
46Screamen EagleHamilton60Transient non-communityGroundwater
47Stiefvaters Lakeside CottagesHamilton58Transient non-communityGroundwater
48Risleys Rush PointHamilton57Transient non-communityGroundwater
49Camp DriftwoodHamilton54Transient non-communityGroundwater
50Galushas CottagesHamilton52Transient non-communityGroundwater

All other water systems in Hamilton County (34)

The remaining active systems filed under Hamilton County, largest first, with the population each reports serving.

Hamilton County water systems: frequently asked questions

How many public water systems are in Hamilton County, New York?

EPA's SDWIS records file 84 active public water systems under Hamilton County, New York: 7 community systems (8.3%), 1 non-transient non-community systems (1.2%) and 76 transient non-community systems (90%).

Who supplies drinking water in Hamilton County, NY?

The largest community water systems filed under Hamilton County are Speculator V (2,008 people served), Indian Lake Wd (900 people served) and Long Lake Wd (800 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 Hamilton County's drinking water come from groundwater or surface water?

Of the 84 active public water systems in Hamilton County, 96% draw mainly on groundwater and 3.6% on surface water, counting purchased supplies. The largest system, Speculator V, uses groundwater.

Where can I find a water quality report for Hamilton 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. 7 community systems are filed under Hamilton 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 Hamilton 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

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 Hamilton County, New York”, https://aquacensus.com/water-systems/new-york/hamilton (data as of October 1, 2026).