PWSID CA0900111
PIONEER ELEMENTARY SCHOOL
Non-transient non-community based in Somerset, CA
Service area on file with EPA: El Dorado County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.
- Population served
- 227
- Source
- Groundwater
- Status
- Active
At a glance
1 above the safety limit, 1 detection to watch
-
Active violation
Lead and Copper Rule Revisions
EPA records an open, unresolved violation against this system for Lead and Copper Rule Revisions.
EPA status: Unaddressed · See details below
-
This utility's lead service line inventory is not yet complete. Federal rules required every system to publish one by October 16, 2024.
From the utility's published inventory · See details below
Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.
Lead service line inventory
Service line inventory still in progress
PIONEER ELEMENTARY SCHOOL reports 0 confirmed lead service lines, 0 non-lead, 19 unknown (total 19) in the EPA SDWIS service line inventory (2026Q1). EPA's Lead and Copper Rule Revisions treat unknown and galvanized-requiring-replacement lines as lead for notification and replacement scheduling until verified.
- 0 confirmed lead service lines
- 0 galvanized requiring replacement (LCRI treats these as lead)
- 19 unknown (100.0% of total)
- 0 confirmed non-lead (0.0%)
- 19 total service lines in the system
What to do if your service line might be lead
- Ask your utility to check the service-line classification for your specific address. Many utilities provide a public address-lookup tool linked from the inventory page.
- Get on the replacement queue. Under the LCRI, utilities must replace all lead and galvanized-requiring- replacement lines within 10 years (clock generally starts November 2027). Some prioritize requests.
- Until the line is replaced: flush the tap 30 seconds after long stagnation, use cold water for drinking and cooking, and consider an NSF/ANSI 53 lead-rated tap filter.
- Talk to your clinician about a blood lead test for anyone in the home, especially a pregnant person or a child under 6. Lead in drinking water guide.
Inventory data sourced from PIONEER ELEMENTARY SCHOOL ( retrieved May 24, 2026 ; curator confidence: medium ). Confirmed against the original source automatically each month; see methodology.
Lead and copper test results
The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.
Why only lead and copper, and not arsenic, nitrate, or others?
EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).
| Contaminant | Most recent | Date | Risk |
|---|---|---|---|
| PB90 | 0 mg/L | December 31, 2025 | Below regulatory thresholds |
Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.
Fluoride
We don't yet have this utility's specific fluoridation status from CDC's My Water's Fluoride listing. The figures below describe the broader area, not PIONEER ELEMENTARY SCHOOL itself.
Area context
El Dorado County, CA (2020 data)
- Community water systems
- 0 of 19 add fluoride
- Population on fluoridated water
- 0 of 252,274 (0.0%)
California statewide (2020 data)
- Population on fluoridated water
- 21,879,582 of 38,051,212 (57.5%)
- Community water systems adding fluoride
- 417 of 3,057
Look up your specific utility
California shares per-system data on CDC's My Water's Fluoride site. Search by water system to see whether PIONEER ELEMENTARY SCHOOL adds fluoride.
Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.
Compliance history
EPA-recorded violations against this system over the last 5 years.
How to read this section
Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.
1 active health-based violation
EPA records 1 health-based violation that has not yet been resolved.
| Period start | Contaminant | What happened | Measured level | Status |
|---|---|---|---|---|
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Inventory | Not reported | Unaddressed |
11 monitoring and reporting item s (paperwork) , 1 still open · these are not health risks
| Period start | Relates to | Item | Status |
|---|---|---|---|
| October 17, 2024 | Lead and Copper Rule Revisions | LSL Reporting | Unaddressed |
| January 1, 2024 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
| January 1, 2024 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
| October 1, 2022 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
| October 1, 2022 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
| August 1, 2022 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| August 1, 2022 | Revised Total Coliform Rule | Monitoring, Routine (RTCR) | Resolved |
| July 1, 2022 | Consumer Confidence Rule | Consumer Confidence Report Complete Failure to Report | Resolved |
| July 1, 2022 | Consumer Confidence Rule | Consumer Confidence Report Complete Failure to Report | Resolved |
| October 1, 2021 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
| October 1, 2021 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Resolved |
32 older violation s (5-10 years ago) · all paperwork (monitoring/reporting), none health-based , all resolved
| Period start | Relates to | Item | Measured level | Status |
|---|---|---|---|---|
| January 1, 2021 | Nitrate-Nitrite | Monitoring, Regular | — | Resolved |
| January 1, 2021 | Nitrate-Nitrite | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Diquat | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Benzo(a)Pyrene | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Carbofuran | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Di(2-Ethylhexyl) Phthalate | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Atrazine | Monitoring, Regular | — | Resolved |
| January 1, 2019 | 2,4,5-Tp | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Methoxychlor | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Glyphosate | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Simazine | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Oxamyl | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Toxaphene | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Hexachlorobenzene | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Lasso | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Di(2-Ethylhexyl) Adipate | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Bhc-Gamma | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Chlordane | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Picloram | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Total Polychlorinated Biphenyls (Pcb) | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Dalapon | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Hexachlorocyclopentadiene | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Ethylene Dibromide | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Heptachlor Epoxide | Monitoring, Regular | — | Resolved |
| January 1, 2019 | 1,2-Dibromo-3-Chloropropane | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Endrin | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Endothall | Monitoring, Regular | — | Resolved |
| January 1, 2019 | 2,3,7,8-Tcdd | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Dinoseb | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Heptachlor | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Pentachlorophenol | Monitoring, Regular | — | Resolved |
| January 1, 2019 | 2,4-D | Monitoring, Regular | — | Resolved |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Where to see every contaminant this utility tested for
EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).
Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.
How to find PIONEER ELEMENTARY SCHOOL's CCR:
- Search the web for "PIONEER ELEMENTARY SCHOOL consumer confidence report" . The PDF is usually on the utility's own website.
- Or call the utility directly. Their phone number is in the contact section below.
Other water systems in El Dorado County, CA
Compare nearby utilities by population served.
- EL DORADO ID - MAIN
132k served · El Dorado County
- SOUTH TAHOE PUD - MAIN
100k served · El Dorado County
- GEORGETOWN DIVIDE PUD
9,434 served · El Dorado County
- PLACERVILLE, CITY OF - MAIN
9,224 served · El Dorado County
- SOUTH SHORE RECREATION AREA
3,300 served · El Dorado County
Contact this utility
Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.
- Administrator
- GARRETT, CHRISTOPHER
- Phone
- 530-620-3556
- CGARRETT@PIONEERUSD.ORG
- Mailing address
- 6862 MT AUKUM RDSOMERSET, CA 95684
Where this page's data comes from
Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.
- EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
- Lead service line inventory — last refreshed May 24, 2026 (from the utility's reported inventory).
- CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).
Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.