Tapcensus

Water quality in Denning (T), New York

Denning (T) is in Ulster County. 447 active public water systems serve the county; 205 had an EPA violation in the past three years.

Most likely your provider

Frost Valley YMCA NY5507411 · Community water system · Ground water · Denning (t)
Serves 688 people Rules violated, past 3 years 1 Unresolved 1 Last sanitary survey May 11, 2026 Distance 5.2 mi

Other community water systems in Ulster County

111 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Greenfield Resort
Wawarsing (t)
1,750 5 12.4 mi
Shady Acres MHP
Wawarsing (t)
135 0 12.8 mi
Wawarsing WD
Wawarsing (t)
500 0 12.9 mi
Samaritan Village Briggs Hwy
Wawarsing (t)
275 1 12.9 mi
Samaritan Village Cape Road Project
Wawarsing (t)
100 1 12.9 mi
Yeshiva of Ocean
Wawarsing (t)
50 3 12.9 mi
Tongore Pines
Olive (t)
40 2 12.9 mi
Napanoch Water District
Wawarsing (t)
750 0 14.3 mi
Hudson Valley Water CO #5
Olive (t)
75 4 14.3 mi
Eastern/ulster Correctional FA
Wawarsing (t)
2,578 1 14.5 mi
Sylvan Glades W.c.
Rochester (t)
89 1 14.7 mi
Kerhonkson Water District
Wawarsing (t)
600 1 14.8 mi
Fountain Villas Mobile Home Park
Wawarsing (t)
73 1 14.8 mi
Phoenicia Water District
Shandaken (t)
450 2 15.0 mi
Willbe MHP
Rochester (t)
45 1 15.1 mi
Pine Hill Water Company
Shandaken (t)
477 1 15.2 mi
Ellenville (village) Water Dis
Ellenville (v)
4,300 1 15.7 mi
Hidden Forest Estates MHP
Rochester (t)
40 0 16.1 mi
Hudson Valley Resort & Spa
Rochester (t)
265 5 16.8 mi
Streamside Estates
Rochester (t)
67 2 17.1 mi
Lucas Estates Water Company
Rochester (t)
70 0 17.7 mi
Hillside Mobile Home Park
Rochester (t)
42 1 17.9 mi
Woodland Country Apartments
Marbletown (t)
85 1 18.3 mi
Glen Mobile Home Park
Wawarsing (t)
96 2 18.4 mi
High Ridge Water Company
Marbletown (t)
65 0 18.8 mi
All 112 community water systems in Ulster County
Non-community systems in Ulster County (335: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Blue Hill Lodge & Cafe
Denning (t)
47 0 0
Camp Frost Valley Farm Overnight Camp
Denning (t)
30 0 0
East Valley Ranch
Denning (t)
25 0 0
Full Moon
Shandaken (t)
42 1 0
Urban Cowboy Lodge
Shandaken (t)
44 0 0
Neemis Corp
Wawarsing (t)
30 1 0
Mountain Lake Camp
Wawarsing (t)
40 0 0
Urban Cowboy #2
Shandaken (t)
50 0 0
Zen Studies Society, Inc.
Hardenburgh (t)
75 0 0
1398 Ulster Heights RD LLC
Wawarsing (t)
25 1 0
Camp Rav Tov-Ulster Heights
Wawarsing (t)
470 0 0
Camp Chaviva
Wawarsing (t)
214 1 0
Eastwind Oliverea Valley
Shandaken (t)
60 0 0
Shaloh Ctr Ii, Katz Family / Emunah Boys
Wawarsing (t)
220 0 0
Luxor Manor
Wawarsing (t)
88 0 0
Pool-Melody Realty Corp
Wawarsing (t)
25 0 0
Reconsider at Lundy Farm
Wawarsing (t)
25 2 0
Tettas Market
Olive (t)
25 0 0
Bayit Vgan Ltd
Wawarsing (t)
225 1 0
Woodland Valley Campground
Shandaken (t)
300 0 0
Sunny Lane, Yonls, LLC
Wawarsing (t)
60 0 0
Camp Machne Kalish
Wawarsing (t)
50 0 0
Pool-Olive Town Pool
Olive (t)
69 0 0
Sunshine Acres Ypbu
Wawarsing (t)
150 0 0
Camp International Riding
Wawarsing (t)
49 1 0
Hide Away Campsites
Shandaken (t)
96 0 0
Oakwood Cottages
Wawarsing (t)
50 0 0
Camp Rav Tov-Napanoch
Wawarsing (t)
750 0 0
Pool-Pine Hill Estates Inc.
Wawarsing (t)
60 0 0
Camp Rav Tov-Zupnick
Wawarsing (t)
25 0 0
Camp Rav Tov-Dairyland
Wawarsing (t)
550 0 0
Camp Bnos Belz
Wawarsing (t)
500 0 0
Camp Mayin Tohar (spinka)
Wawarsing (t)
175 0 0
Mount Zion Camp & Retreat Center
Wawarsing (t)
175 0 0
Pool-17-18 Bungalows
Wawarsing (t)
150 0 0
Camp Machne Ohel Yochanan
Wawarsing (t)
60 0 0
Pool-Spring Glen Corners
Wawarsing (t)
50 0 0
Sunny Hill Colony
Wawarsing (t)
40 1 0
Outpost Bbq
Wawarsing (t)
25 1 0
Pool-Greenfield Meadows Condominium
Wawarsing (t)
25 0 0
Sams Point Conservation Center
Wawarsing (t)
25 0 0
Tel Yafa Ltd
Wawarsing (t)
150 1 0
Ashokan Headworks
Olive (t)
97 1 0
Bread Alone
Olive (t)
25 0 0
Good Friend Cafe
Olive (t)
25 0 0
Jellystone Park at Birchwood Acres
Wawarsing (t)
650 1 0
Camp Ohr Shraga
Wawarsing (t)
45 0 0
Menla Mountain Retreat
Shandaken (t)
260 1 0
Camp Emunah Sr. Div.
Wawarsing (t)
350 0 0
Catskill Seasons Inn
Shandaken (t)
100 0 0
All non-community systems
About this data

Water systems are matched to Ulster County, nearest to Denning (T) first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

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 New York 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.