Water treatment and distribution · California
Mammoth Community Water District
Mammoth Lakes, CA · ~42 workers · 8 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 1.8
- Avg TCR
- 1.2
- Industry avg
- 0
- Fatalities
The verdict
Mammoth Community Water District runs at 148% of its industry's injury rate - more dangerous than the typical Water treatment and distribution workplace, earning a grade D.
Mammoth Community Water District: 1.8 TCR = 148% of Water treatment and distribution BLS 1.2 · 8y Form 300A (see methodology below)
Mammoth Community Water District safety composite
Mammoth Community Water District scores strongest on dart rate (safer than 83% of same-industry peers) and weakest on fatalities (safer than 51%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).
74/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- B 1.77 per 100 workers
Safer than 80% of industry peers
- DART rate
- B 0 per 100 workers
Safer than 83% of industry peers
- Fatalities
- D 0
Safer than 51% of industry peers
Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).
TCR Δ
−2.9
2017→2024
Mammoth Community Water District injury rate improved
Mammoth Community Water District's TCR fell 2.9 from 2.9 in 2017 to 0.0 in 2024. Peak filing year was 2023 at 5.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).
2017=2.9 · 2018=0.0 · 2019=0.0 · 2020=2.9 · 2021=0.0 · 2022=2.9 · 2023=5.5 · 2024=0.0
OSHA ITA Form 300A scorecard
Establishment book 221310 · Mammoth Lakes, CA ABOVE-IND · SMALL
Grade D · TCR 1.8 · 148% of ind
- DART 0.0 DART
- RANK #21/176
- PHOTO 6032 - Charlotte
- BOOK 8y book
- INJ 5 inj
- SIZE ~42 FTE
Nearest TCR peer: 6032 - Charlotte (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Mammoth Community Water District in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Mammoth Community Water District
1.8 TCR
- 6032 - Charlot
6032 - Charlotte
1.8 TCR
- Mark B. Whitak
Mark B. Whitaker WP
1.8 TCR
- Fort Johnson
Fort Johnson
1.8 TCR
- Illinois Ameri
Illinois American Water (Chicago Metro)
1.8 TCR
What this shows Mammoth Community Water District averages 1.8 TCR (148% of the Water treatment and distribution BLS benchmark).
Mammoth Community Water District TCR series: 2017=2.9 · 2018=0 · 2019=0 · 2020=2.9 · 2021=0 · 2022=2.9 · 2023=5.5 · 2024=0 · BLS 1.2
Where Mammoth Community Water District falls in its industry
727 Water treatment and distributi establishmentsSafer than 80% of graded establishments in this industry, whose median TCR is 4.2.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #21 safest of 176 Water treatment and distributi employers in California.
Mammoth Community Water District has fewer employees than the Water treatment and distribution median and a lower injury rate than the industry's median TCR of 4.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2023 | 5.5 | 0.0 | 2 | 0 | 0 |
| 2022 | 2.9 | 0.0 | 1 | 0 | 0 |
| 2021 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2020 | 2.9 | 2.9 | 1 | 0 | 0 |
| 2019 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2018 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2017 | 2.9 | 2.9 | 1 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
221310 · CA · Mammoth Lakes
727 Water treatment and distribution employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 10 employers in Mammoth Lakes, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.
| Rel | Establishment | Metric |
|---|---|---|
| NAICS-TCR | 6032 - Charlotte | 1.8 TCR |
| NAICS-TCR | Mark B. Whitaker WP | 1.8 TCR |
| NAICS-TCR | Fort Johnson | 1.8 TCR |
| NAICS-TCR | Illinois American Water (Chicago Metro) | 1.8 TCR |
| STATE-SIZE | Quad H | 42 FTE |
| STATE-SIZE | CJJ Farming, Inc | 42 FTE |
| STATE-SIZE | Oceano Packing Company LLC | 42 FTE |
| STATE-SIZE | Connell Ranch | 42 FTE |
| CITY-NEAR | Mammoth Mountain Ski Area, LLC | 2,452 FTE |
| CITY-NEAR | Mammoth Hospital | 410 FTE |
| CITY-NEAR | California Department of Transportation Facility 314 | 315 FTE |
| CITY-NEAR | 6962-SWY-0029-0029-02400 | 102 FTE |
| NAT-TCR | Raleigh | 1.8 TCR |
| NAT-TCR | Chesterfield (Mt Clemens) MFG (EF, AUTO) | 1.8 TCR |
| NAT-TCR | Nutek Disposables, Inc. | 1.8 TCR |
| NAT-TCR | Leppinks Belding | 1.8 TCR |
| NAT-SIZE | City of Royal Oak - Public Library | 42 FTE |
| NAT-SIZE | Lake Havasu | 42 FTE |
| NAT-SIZE | Midwest Gear & Tool, Inc. | 42 FTE |
| NAT-SIZE | Prescription Landscape - Shakopee Office | 42 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.