Water treatment and distribution · California
Robert Diemer Treatment Plant
Yorba Linda, CA · ~74 workers · 2 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 3.1
- Avg TCR
- 1.2
- Industry avg
- 0
- Fatalities
The verdict
Robert Diemer Treatment Plant runs at 255% of its industry's injury rate - far more dangerous than the typical Water treatment and distribution workplace, earning a grade F.
Robert Diemer Treatment Plant: 3.1 TCR = 255% of Water treatment and distribution BLS 1.2 · 2y Form 300A (see methodology below)
Robert Diemer Treatment Plant safety composite
Robert Diemer Treatment Plant scores strongest on total case rate (tcr) (safer than 62% of same-industry peers) and weakest on dart rate (safer than 26%), 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).
47/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- C 3.06 per 100 workers
Safer than 62% of industry peers
- DART rate
- F 4.62 per 100 workers
Safer than 26% 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%).
Rising injury rate
Robert Diemer Treatment Plant: 1.5 → 4.6 TCR
Peak year 2024 @ 4.6 TCR · DART/TCR 1.51× in 2024
Robert Diemer Treatment Plant's TCR rose 3.1 from 1.5 in 2023 to 4.6 in 2024. In 2024, DART was 1.51× this establishment's average TCR (severity share of cases).
OSHA ITA Form 300A scorecard
Establishment book 221310 · Yorba Linda, CA ABOVE-IND · SMALL
Grade F · TCR 3.1 · 255% of ind
- DART 4.6 DART
- RANK #45/176
- PHOTO Water Administration…
- BOOK 2y book
- INJ 4 inj
- SIZE ~74 FTE
Nearest TCR peer: Water Administration Building (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Robert Diemer Treatment Plant in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Robert Diemer Treatment Plant
3.1 TCR
- Water Administ
Water Administration Building
3.1 TCR
- Santa Clarita
Santa Clarita Valley Water Agency
3.1 TCR
- Water/Public W
Water/Public Works, Public Utiities
3.1 TCR
- Sedona office
Sedona office
3 TCR
What this shows Robert Diemer Treatment Plant averages 3.1 TCR (255% of the Water treatment and distribution BLS benchmark).
Robert Diemer Treatment Plant TCR series: 2023=1.5 · 2024=4.6 · BLS 1.2
Where Robert Diemer Treatment Plant falls in its industry
727 Water treatment and distributi establishmentsSafer than 62% 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 #45 safest of 176 Water treatment and distributi employers in California.
Robert Diemer Treatment Plant has more 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 | 4.6 | 4.6 | 3 | 0 | 0 |
| 2023 | 1.5 | 1.5 | 1 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
221310 · CA · Yorba Linda
727 Water treatment and distribution employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 53 employers in Yorba Linda, 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 | Water Administration Building | 3.1 TCR |
| NAICS-TCR | Santa Clarita Valley Water Agency | 3.1 TCR |
| NAICS-TCR | Water/Public Works, Public Utiities | 3.1 TCR |
| NAICS-TCR | Sedona office | 3.0 TCR |
| STATE-SIZE | Wonderful Orchards-New Columbia | 74 FTE |
| STATE-SIZE | Apricot Lane Farms | 74 FTE |
| STATE-SIZE | Central California Almond Growers (Kerman) | 74 FTE |
| STATE-SIZE | Jose Jesus Garcia Jr | 74 FTE |
| CITY-NEAR | California Department of Transportation Facility 803 | 917 FTE |
| CITY-NEAR | 0445 - YORBA LINDA CA WHSE | 309 FTE |
| CITY-NEAR | 1697_3366 | 224 FTE |
| CITY-NEAR | Vyaire Medical - Yorba Linda | 218 FTE |
| NAT-TCR | Vibrant Technologies, Inc. | 3.1 TCR |
| NAT-TCR | Toshiba Business Solutions - Boston | 3.1 TCR |
| NAT-TCR | Delafield | 3.1 TCR |
| NAT-TCR | Sodexo at Northgate School District | 3.1 TCR |
| NAT-SIZE | Rouses Market #50 | 74 FTE |
| NAT-SIZE | US Gypsum Port Reading | 74 FTE |
| NAT-SIZE | U.S. Strapping Company, Inc. | 74 FTE |
| NAT-SIZE | Emery Hotel - Minneapolis | 74 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.