Non-Transient Non-Community Water System · PWS CA0900659
Sierra Tahoe Main Lodge
Operator location Twin Bridges, California - UCMR5 detected 2 PFAS compounds (lower-third PFAS panel (≤ 2 compounds)) on this PWS; SDWIS lists 137 violations and 1,940 people served.
- 1,940
- People served (this PWS)
- 137
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- 2 PFAS
- UCMR5 (this PWS)
Sierra Tahoe Main Lodge standing, high SDWIS violation third
UCMR5 detected 2 PFAS compounds - lower-third PFAS panel (≤ 2 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 1% is middle-third health share (≤ 23%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #13,893 of 29,740 among systems serving 500+.
The verdict
Sierra Tahoe Main Lodge sits in the upper third of the sitemap cohort by violation count (137), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,940 (mid served population (≤ 3,309)). Health-based share is 1% (middle-third health share (≤ 23%)). UCMR5 detected 2 PFAS compounds (lower-third PFAS panel (≤ 2 compounds)).
- #13,893 of 29,740
- Population · /systems
- #917 of 1,701
- Population · CA
- 137
- Total EPA violations on record
- 1%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 5
- County
- El Dorado
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 110
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 6 | 2023 |
| Coliform (TCR) | MCL | 2 | 1997 |
| Endrin | MR | 2 | 2017 |
| BHC-GAMMA | MR | 2 | 2017 |
| Toxaphene | MR | 2 | 2017 |
| Dalapon | MR | 2 | 2017 |
| Diquat | MR | 2 | 2017 |
| Endothall | MR | 2 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2017 |
| OXAMYL | MR | 2 | 2017 |
| Simazine | MR | 2 | 2017 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2017 |
| Carbofuran | MR | 2 | 2017 |
| 2,4-D | MR | 2 | 2017 |
| HEXACHLOROBENZENE | MR | 2 | 2017 |
| Pentachlorophenol | MR | 2 | 2017 |
| ETHYLENE DIBROMIDE | MR | 2 | 2017 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2017 |
| Chlordane | MR | 2 | 2017 |
| Xylenes, Total | MR | 2 | 2017 |
| o-Dichlorobenzene | MR | 2 | 2017 |
| 1,2-Dichloroethane | MR | 2 | 2017 |
| 1,2-Dichloropropane | MR | 2 | 2017 |
| Tetrachloroethylene | MR | 2 | 2017 |
| Benzene | MR | 2 | 2017 |
| Styrene | MR | 2 | 2017 |
| Nitrate | MR | 2 | 2023 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2017 |
| Picloram | MR | 2 | 2017 |
| LASSO | MR | 2 | 2017 |
Violation Count vs. the National Corpus
Sierra Tahoe Main Lodge has 137 recorded EPA violations, 79% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 20% carry more. 1% of this system's own violations are health-based (2 of 137), and it ranks #13,893 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
137 Higher than most more violations than 79% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFOA | 8/2/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBS | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 8/2/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 8/2/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 8/2/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDoA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 8/2/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NMeFOSAA | 8/2/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHpA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 8/2/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 8/2/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpS | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 8/2/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 8/2/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/2/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 8/2/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 8/2/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 1/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 1/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 1/10/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 1/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 1/10/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFOA | 1/10/2023 | 5.00 ppt | 4.00 ppt | Detected |
| PFHxA | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 1/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOS | 1/10/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NMeFOSAA | 1/10/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHxS | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 1/10/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTrDA | 1/10/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFBS | 1/10/2023 | 3.00 ppt | 3.00 ppt | Detected |
| 4:2 FTS | 1/10/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 1/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 1/10/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
UCMR5 PFAS record for Sierra Tahoe Main Lodge
Open EPA SDWIS federal reports for PWS CA0900659 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.
Sources: EPA SDWIS · California State Water Resources Control Board, Division of Drinking Water
Nationwide peers
137 violations · 1,940 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Sierra Tahoe Main Lodge
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in California compares on the same EPA violation measures. California systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.