Tapcensus

Water quality in North San Juan, California

North San Juan is in Nevada County. 84 active public water systems serve the county; 21 had an EPA violation in the past three years.

Most likely your provider

Shady Lake Water Association CA2900511 · Community water system · Ground water
Serves 90 people Rules violated, past 3 years 0 Last sanitary survey Apr 25, 2025 Distance under 0.1 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Nevada County

20 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Gold Country Home Park Water System
60 0 0.4 mi
Ananda Village
226 0 3.1 mi
Yulica
25 0 7.3 mi
City of Nevada City
Nevada City
3,148 0 8.9 mi
Nevada ID E. George, Banner Mountain
17,154 0 9.6 mi
Rough & Ready Village
154 1 10.1 mi
Washington Ridge C.c.
70 1 10.2 mi
Nevada ID Lake Wildwood
9,108 0 11.0 mi
City of Grass Valley
Grass Valley
4,947 0 11.2 mi
Creekside Village
300 0 12.5 mi
Sierra Estates Mutual Water Company
100 2 13.3 mi
Nevada ID Loma Rica
14,072 0 16.1 mi
Washington Water District
330 3 17.5 mi
Christian Encounter Ministries
35 0 17.6 mi
Nevada ID Lake of Pines
6,870 0 23.2 mi
Plavada Community Association
126 0 35.6 mi
Donner Summit Public Utility District
98 0 39.9 mi
Truckee-Donner Pud, Main
36,730 0 48.3 mi
Truckee-Donner Pud Hirschdale
85 0 55.0 mi
Floriston Water System
110 3 57.9 mi
Non-community systems in Nevada County (63: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Ridge Cafe-Water System
75 0 0
Bigleys Market / Brass Rail
150 0 0
North San Juan Community Center
50 1 0
Nid Scotts Flat Lake Reservoir
253 0 0
Twin Ridges Oak Tree School
120 0 0
Petersons Corner Water System
150 0 0
Mother Truckers Water System
Nevada City
450 0 0
Shady Creek Outdoor School
315 2 0
Mountain Valley Child and Family Service
50 0 0
Sierra Family Medical Clinic
35 0 0
Twin Ridges Grizzly Hill School
125 0 0
Diamond Arrow Conference Center
135 0 0
South Yuba River State Park
800 0 0
South Yuba Campground
85 1 0
Bitney Springs Center Water System
606 0 0
Harmony Ridge Resort
201 0 0
Olympia Park Water System
35 0 0
Harmony Ridge Market
150 0 0
5 Mile House
150 0 0
Unitarian Universalist Comm. of the Mtns
75 1 0
Harmony Ridge Lodge
30 0 0
Malakoff Diggins Shp
125 0 0
Camp Bountiful
100 0 0
Camp Ross Relles
154 1 0
Ncsos, McCourtney Rd.
25 1 1
Skippers Cove
215 0 0
Penn Valley Shell
100 0 0
Heauser's Plaza Center
100 0 0
Joe Miller Recreational Area
100 0 0
Englebright Dam Recreation Center
50 0 0
Penn Valley Shopping Center
82 2 0
McCourtney Road Transfer Station
Grass Valley
28 0 0
Golden Chain Motel
51 0 0
White Cloud Admin/campground
60 1 0
New Solutions Construction Water System
102 1 0
Animal Place
30 0 0
Wolf Mountain Conf. Assn.
86 0 0
Clear Creek School
160 0 0
Rollins Lakeside Resort
35 0 0
Peninsula Campground Water System
202 0 0
Sivananda Yoga Farm
23 1 0
Dew Drop Inn
50 0 0
Pleasant Ridge School
250 0 0
Donner Mine Camp INC
151 2 0
Naggiar Vineyards
109 0 0
Nelson Industrial Park
32 0 0
Camp Rucker Lake
150 0 0
Lake Spaulding Campground
204 0 0
Marin Sierra Boy Scouts of America
151 0 0
Donner Trail Elementary School
60 0 0
All non-community systems
About this data

Water systems are matched to Nevada County, nearest to North San Juan 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.

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 California 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.