County · California
Placer County, California: drinking water records
Explore EPA records for 52 community water systems across 30 ZIP codes in Placer 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 11 of the 52 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 52 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 |
|---|---|---|---|---|---|
| City of Roseville CA3110008 | 155,612 | 510 | 0 | 0 | 0 ppbbelow the action level |
| Placer Cwa - Foothill CA3110025 | 89,544 | 150 | 0 | 0 | 0 ppbbelow the action level |
| City of Lincoln CA3110004 | 54,538 | 240 | 2 | 0 | 0 ppbbelow the action level |
| Placer Cwa - Auburn/Bowman CA3110005 | 27,294 | 240 | 0 | 0 | 0 ppbbelow the action level |
| Northstar C.S.D. CA3110028 | 15,452 | 120 | 0 | 0 | 4.4 ppbbelow the action level |
| Cal Am - West Placer CA3110150 | 8,861 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Nevada Id - North Auburn CA3110026 | 6,870 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Foresthill Public Utility Dist CA3110003 | 6,782 | 120 | 0 | 0 | 0 ppbbelow the action level |
| North Tahoe PUD - Main CA3110001 | 6,321 | 240 | 0 | 0 | 1.5 ppbbelow the action level |
| Tahoe City PUD - Main CA3110010 | 5,661 | 300 | 0 | 0 | 4.4 ppbbelow the action level |
| Meadow Vista Cwd CA3110009 | 4,183 | 120 | 0 | 0 | 0.7 ppbbelow the action level |
| Agate Bay Water Company CA3110012 | 2,500 | 0 | 0 | 1 | 1.1 ppbbelow the action level |
| Tahoe Park Water Company CA3110018 | 750 | 0 | 0 | 1 | 12 ppbbelow the action level |
| Heather Glen Community Service Dist CA3100038 | 250 | 0 | 0 | 1 | 0.9 ppbbelow the action level |
| Baker Ranch Water Corp CA3100014 | 150 | 0 | 0 | 1 | 2.8 ppbbelow the action level |
| Northstar CSD - Martis Valley CA3110051 | 4,493 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Tahoe City PUD - Tahoe Swiss Village CA3110042 | 3,363 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Placer Cwa - Colfax CA3110006 | 3,149 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Fulton Water Company CA3110015 | 2,593 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Alpine Springs County Water District CA3110029 | 2,200 | 0 | 0 | 0 | 4 ppbbelow the action level |
| Christian Valley Park CSD CA3110034 | 1,800 | 0 | 0 | 0 | 1.5 ppbbelow the action level |
| Pcwa - Weimar CA3110035 | 1,689 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Midway Heights C. W. D. CA3110041 | 1,491 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Olympic Valley PSD CA3110020 | 1,165 | 0 | 0 | 0 | 14.4 ppbbelow the action level |
| Mckinney Water District CA3110022 | 853 | 0 | 0 | 0 | 8.5 ppbbelow the action level |
| Tahoe City PUD - Mckinney/Quail CA3110011 | 844 | 0 | 0 | 0 | 4.7 ppbbelow the action level |
| Sierra Lakes County Water Dist CA3110017 | 824 | 0 | 0 | 0 | 3 ppbbelow the action level |
| Tahoe City PUD - Tahoe Cedars CA3110013 | 793 | 0 | 0 | 0 | 3.2 ppbbelow the action level |
| Olympic Valley Mwc CA3110019 | 756 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Placer Cwa - Alta CA3110024 | 748 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Placer Csa - Sheridan CA3110048 | 653 | 0 | 0 | 0 | 0 ppbbelow the action level |
| North Tahoe PUD - Carnelian Woods CA3110023 | 524 | 0 | 0 | 0 | 3.2 ppbbelow the action level |
| North Tahoe PUD - Dollar Cove CA3110036 | 507 | 0 | 0 | 0 | 7.9 ppbbelow the action level |
| Hidden Valley Community Association CA3103836 | 499 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lakeview Hills Community Assoc CA3103835 | 499 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Ward Well Water Company CA3110031 | 425 | 0 | 0 | 0 | 5.9 ppbbelow the action level |
| Folsom Lake Mutual Water Co CA3107339 | 333 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Tahoe City PUD - Madden Creek CA3110043 | 300 | 0 | 0 | 0 | 2.3 ppbbelow the action level |
| Talmont Resort Improvement District CA3110047 | 300 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Auburn Valley Community Service Dis CA3100011 | 290 | 0 | 0 | 0 | 3.0 ppbbelow the action level |
| Alpine Meadows Property Owners Asso CA3100041 | 250 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Tahoe City PUD - Alpine Peaks CA3110044 | 201 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Tahoe City PUD - Timberland CA3100029 | 200 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Placer Cwa - Applegate CA3110050 | 190 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Emigrant Gap Mutual Water Co. CA3103310 | 125 | 0 | 0 | 0 | 2.9 ppbbelow the action level |
| Placer Cwa - Bianchi Estates CA3110040 | 110 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Golden Hills Mutual Water Co CA3100528 | 84 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Auburn Ridge Woods CA3100069 | 75 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Gold Hill Mobilehome Park CA3100043 | 75 | 0 | 0 | 0 | 3.4 ppbbelow the action level |
| Tahoe Park Water Co - Skyland/Nielsen CA3110049 | 50 | 0 | 0 | 0 | 6 ppbbelow the action level |
| Placer Cwa - Monte Vista CA3110124 | 46 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Rosecrest Mutual CA3100538 | 31 | 0 | 0 | 0 | 3.0 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Placer County, California. 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 Placer County
30ZIP 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
- Alta
- Auburn
- Carnelian Bay
- Colfax
- Dutch Flat
- Foresthill
- Granite Bay
- Kings Beach
- Lake of the Pines
- Lincoln
- Loomis
- Meadow Vista
- Newcastle
- Penryn
- Rocklin
- Roseville
- Sheridan
- Soda Springs
- Sunnyside-Tahoe City
- Tahoe Vista
- Tahoma
View ZIP areas and understand coverage
- 95602Lake of the Pines
- 95603Auburn
- 95604Carnelian Bay
- 95631Foresthill
- 95648Lincoln
- 95650Loomis
- 95658Newcastle
- 95661Roseville
- 95663Penryn
- 95677Rocklin
- 95678Roseville
- 95681Sheridan
- 95701Alta
- 95703
- 95713Colfax
- 95714Dutch Flat
- 95715
- 95717
- 95722Meadow Vista
- 95728Soda Springs
- 95736
- 95746Granite Bay
- 95747Roseville
- 95765Rocklin
- 96140Carnelian Bay
- 96141Tahoma
- 96143Kings Beach
- 96145Sunnyside-Tahoe City
- 96146
- 96148Tahoe Vista
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.