Drilling water wells (except water intake wells in oil and gas fields) · California

Peters Drilling

Grass Valley, CA · ~25 workers · 4 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
3.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Peters Drilling runs at 136% of its industry's injury rate - more dangerous than the typical Drilling water wells (except water intake wells in oil and gas fields) workplace, earning a grade D.

Peters Drilling: 3.8 TCR = 136% of Drilling water wells (except water intake wells in oil and gas fields) BLS 2.8 · 4y Form 300A (see methodology below)

Peters Drilling safety composite

Peters Drilling scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 7%), 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).

F

31/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.8 per 100 workers

Safer than 39% of industry peers

DART rate
F 7.01 per 100 workers

Safer than 7% of industry peers

Fatalities
D 0

Safer than 52% 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

Peters Drilling: 0.0 → 7.0 TCR

Peak year 2019 @ 8.2 TCR · DART/TCR 1.84× in 2020

Peters Drilling's TCR rose 7.0 from 0.0 in 2017 to 7.0 in 2020. Peak filing year was 2019 at 8.2 TCR. In 2020, DART was 1.84× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 237110 · Grass Valley, CA ABOVE-IND · SMALL

Grade D · TCR 3.8 · 136% of ind

  • DART 7.0 DART
  • RANK #120/201
  • PHOTO Dagger Contracting, …
  • BOOK 4y book
  • INJ 4 inj
  • SIZE ~25 FTE

Nearest TCR peer: Dagger Contracting, LLC (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

Peters Drilling in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Peters Drilling averages 3.8 TCR (136% of the Drilling water wells (except water intake wells in oil and gas fields) BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Peters Drilling TCR series: 2017=0 · 2018=0 · 2019=8.2 · 2020=7 · BLS 2.8

Where Peters Drilling falls in its industry

1,614 Drilling water wells (except w establishments

Safer than 39% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #120 safest of 201 Drilling water wells (except w employers in California.

Peters Drilling (25 employees, TCR 3.8) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400500 051015 Average employees Total Case Rate Peters Drilling
Peters Drilling (25 employees, TCR 3.8) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

Peters Drilling has fewer employees than the Drilling water wells (except water intak median and a higher injury rate than the industry's median TCR of 3.0. 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
2020 7.0 7.0 2 0 0
2019 8.2 8.2 2 0 0
2018 0.0 0.0 0 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · CA · Grass Valley

1,614 Drilling water wells (except water intake wells in oil and gas fields) employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 66 employers in Grass Valley, 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 Dagger Contracting, LLC 3.8 TCR
NAICS-TCR Weaver Environmental Services 3.8 TCR
NAICS-TCR Building Crafts 3.8 TCR
NAICS-TCR Marinship Development Interests, Inc. 3.8 TCR
STATE-SIZE Conservation Farms Ranches 25 FTE
STATE-SIZE GM Ag Services, Inc. 25 FTE
STATE-SIZE Farm Shop 25 FTE
STATE-SIZE Dougherty Brothers 25 FTE
CITY-NEAR 6403-64030166 850 FTE
CITY-NEAR Sierra Nevada Memorial - Miners Hospital 847 FTE
CITY-NEAR Sierra Nevada Memorial Miners-Hospital 752 FTE
CITY-NEAR Sierra Nevada Memorial-Miners Hospital 749 FTE
NAT-TCR Vectren Corporation - Dayton West 3.8 TCR
NAT-TCR Hitachi Automotive Systems Americas, Inc 3.8 TCR
NAT-TCR Jacoby Feed & Seed 3.8 TCR
NAT-TCR The CORE Group- Metro NY 3.8 TCR
NAT-SIZE Town & Country Supermarket 25 FTE
NAT-SIZE Waelzholz North America, LLC 25 FTE
NAT-SIZE Glen Ellyn Storage 25 FTE
NAT-SIZE Hampton Inn & Suites-Steamboat Springs 25 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2020, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.