County · New York
Tompkins County, New York: drinking water records
Explore EPA records for 51 community water systems across 13 ZIP codes in Tompkins County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 3 of the 51 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 51 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Ithaca City NY5404416 | 29,457 | 120 | 0 | 1 | 2.4 ppbbelow the action level |
| Cornell University NY5417686 | 31,581 | 120 | 0 | 0 | 2.4 ppbbelow the action level |
| Ithaca Town WD NY5404419 | 13,000 | 95 | 1 | 0 | 8.8 ppbbelow the action level |
| Dryden Village NY5404412 | 2,000 | 0 | 0 | 7 | 2.4 ppbbelow the action level |
| Ulysses WD #3 NY5430047 | 400 | 0 | 0 | 6 | 2 ppbbelow the action level |
| Newfield Estates NY5405808 | 160 | 0 | 0 | 1 | 3 ppbbelow the action level |
| Mountain View Manor NY5405816 | 40 | 0 | 0 | 1 | 3 ppbbelow the action level |
| Willow Hill Mobile Court NY5405815 | 40 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Cayuga Heights Village NY5404411 | 3,170 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Lansing (V) NY5416982 | 3,100 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Lansing (T) Consolidated WD NY5416959 | 3,000 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Groton Village NY5404415 | 2,470 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Newfield Wds NY5404421 | 2,300 | 0 | 0 | 0 | 9 ppbbelow the action level |
| Trumansburg Village NY5404417 | 2,300 | 0 | 0 | 0 | 2.8 ppbbelow the action level |
| Dryden WD NY5416960 | 725 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Hanshaw Village MHP NY5405832 | 447 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Ithaca Estates NY5405800 | 342 | 0 | 0 | 0 | 1 ppbbelow the action level |
| West Danby WD NY5404422 | 265 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Country Acres MHP NY5405805 | 253 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Little Creek MHP NY5405827 | 252 | 0 | 0 | 0 | 2.3 ppbbelow the action level |
| William George Agency NY5405812 | 250 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Yellow Barn WD NY5404425 | 250 | 0 | 0 | 0 | 8 ppbbelow the action level |
| Sandy Creek Mobile Home Park NY5405831 | 215 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Pleasant View MHP NY5405826 | 125 | 0 | 0 | 0 | 2.8 ppbbelow the action level |
| Beaconview MHP NY5405793 | 110 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Country Gardens Apartments NY5405825 | 110 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Creekwood Apartments NY5410468 | 110 | 0 | 0 | 0 | 13 ppbbelow the action level |
| Fall Creek Park NY5405809 | 90 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hillview Terrace MHP NY5405814 | 80 | 0 | 0 | 0 | 3.5 ppbbelow the action level |
| Skyhook Apartments NY5421483 | 66 | 0 | 0 | 0 | 3 ppbbelow the action level |
| Collegeview North MHP NY5421865 | 58 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Orchard Apartments NY5430066 | 56 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Cloverland Park NY5421825 | 55 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Jeslen Court MHP NY5409757 | 52 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Brook Woods Mobile Manor NY5405794 | 50 | 0 | 0 | 0 | 3.2 ppbbelow the action level |
| Maccormick Secure Center NY5405797 | 50 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Fountain Manor Apartments NY5421400 | 48 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Lehigh Crossing Apartments NY5422534 | 48 | 0 | 0 | 0 | 3.5 ppbbelow the action level |
| Deibler Apartments NY5421759 | 46 | 0 | 0 | 0 | 6 ppbbelow the action level |
| Brookview Apartments NY5405820 | 45 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Mott Road Park NY5405807 | 45 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Jims MHP NY5420407 | 42 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Bailey Park NY5405829 | 37 | 0 | 0 | 0 | 11 ppbbelow the action level |
| Hillside Apts NY5417118 | 37 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sunset Townhouses NY5430001 | 36 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Boiceville Apartments NY5430033 | 32 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Stoney Brook Apartments NY5430002 | 28 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Green Acres MHP NY5405813 | 26 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Meadowbrook Apartments NY5430073 | 26 | 0 | 0 | 0 | 0.4 ppbbelow the action level |
| White Hawk Ecovillage Community NY5430089 | 25 | 0 | 0 | 0 | 3.5 ppbbelow the action level |
| Scliwc NY5404423 | 0 | 0 | 0 | 0 | 8.8 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Tompkins County, New York. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Tompkins County
13ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Brooktondale
- Dryden
- Freeville
- Groton
- Ithaca
- Jacksonville
- McLean
- Newfield
- Slaterville Springs
- South Hill
- South Lansing
View ZIP areas and understand coverage
- 13053Dryden
- 13062
- 13068Freeville
- 13073Groton
- 13102McLean
- 14817Brooktondale
- 14850South Hill
- 14853Ithaca
- 14854Jacksonville
- 14867Newfield
- 14881Slaterville Springs
- 14882South Lansing
- 14886Jacksonville
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.