What is HILL BROTHERS CHEMICAL CO's OSHA violation history?

HILL BROTHERS CHEMICAL CO has 1 OSHA inspection on record with 0 violations and $0 in total penalties.

Establishment profile

HILL BROTHERS CHEMICAL CO

4450 N 42ND AVE, PHOENIX, AZ, 85019
Operated by Hill Brothers Chemical Company · 1 of 2 establishments

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OSHA inspections

over 38 years

Violations

Penalties

Violations across 2 federal agencies

Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.

Summary

HILL BROTHERS CHEMICAL CO has accumulated 0 OSHA violations across 1 inspection over 38 years of recorded history.

The most recent federal enforcement activity was recorded 38 years ago.

Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

HILL BROTHERS CHEMICAL CO appears in OSHA workplace safety, EPA environmental compliance, and NLRB labor relations records only. No matching records were found in WHD wage enforcement, MSHA mine safety, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls.

OSHA workplace safety

Inspections

0.0 / yr · last 38 yrs

Violations

0.0 / yr

Penalties

Inspection trigger · planned

1 of 1

Peer comparison

0th

Fewer violations than most other employers. Peer group: 35,510 employers. This establishment has 0 OSHA violations; peer median is 0.

Fewer violationsMore violations

Penalty percentile

0th

peer median: $0

Inspection frequency

0th

peer median: 1

Safety self-report (OSHA 300A)

Recordable injury rates the employer filed with OSHA’s Injury Tracking Application. DART covers cases with days away, restricted, or transferred; TRIR is the total recordable case rate.

DART rate

0.0

vs industry

—

TRIR

3.3

vs industry

—

Reported for 32 average annual employees at this establishment.

Source: OSHA ITA Form 300A (employer self-reported). Rates are per 100 full-time equivalent workers. Establishments below the ~10-FTE threshold are not required to report.

Inspection breakdown

Planned

Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.

OSHA severe injury reports

No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for HILL BROTHERS CHEMICAL CO. Verify directly with Occupational Safety and Health Administration →

Activity timeline

Data refreshed

Weekly

First OSHA inspection

—

Most recent activity

38 years ago

No federal enforcement activity has been recorded against this establishment in 38+ years. Most recent activity: 38 years ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for HILL BROTHERS CHEMICAL CO. Verify directly with Wage and Hour Division →

Mine safety (MSHA)

No MSHA mine safety violations on file for HILL BROTHERS CHEMICAL CO. Verify directly with Mine Safety and Health Administration →

Labor relations (NLRB)

Company-level in AZ — for Hill Brothers Chemical Company, not this location alone

Total cases

Unfair labor practice

National Labor Relations Board — unfair labor practice charges and union representation cases. The NLRB records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other Hill Brothers Chemical Company locations in the same state.

NLRB cases

National Labor Relations Board cases involving this employer. Includes unfair labor practice (ULP) filings and representation election proceedings. NLRB enforcement is process-driven; no per-case monetary penalty is assessed (remedies are case-by-case backpay orders, posting requirements, election re-runs, etc.). 1 case · 1 ULP

Case number	Type	Filed	Closed	Status	Region
28-CA-139166	Unfair labor practice	Oct 2014	Dec 2014	Closed	Region 28, Phoenix, Arizona

Source: NLRB case files. Rows shown are those the agency has published. Region numbers (1–31) correspond to NLRB's geographic offices.

Visa & labor certification (OFLC) — historical

No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for HILL BROTHERS CHEMICAL CO. Verify directly with Office of Foreign Labor Certification →

Environmental compliance (EPA)

EPA inspections

Quarters non-compliant

Formal actions

EPA penalties

$205,000

EPA Enforcement and Compliance History — Clean Air Act, Clean Water Act, RCRA, Safe Drinking Water Act. Status: No Violation Identified.

EPA-registered facilities

Every EPA ECHO facility associated with this employer, sorted most-significant first. Each row links to EPA’s Detailed Facility Report for the source-of-truth record. Permits column lists active programs (Air = Clean Air Act, Water = Clean Water Act, RCRA = hazardous waste, TRI = Toxics Release Inventory reporting). 1 facility · $205,000 in assessed penalties.

Facility	Permits	Status	Inspections	Formal actions	Penalties	Last inspected	ECHO
HILL BROTHERS CHEMICAL CO 4450 N 42ND AVE · PHOENIX, AZ, 85019	AirWaterRCRATRI	No Violation Identified QNCR 1	2	1	$205,000	Oct 2025	View →

Source: EPA ECHO (Enforcement and Compliance History Online). Compliance status follows EPA’s own labels (“Sig Violation” = significant noncompliance; QNCR = quarters of noncompliance over the recent reporting window). Inactive facilities (struck through) retain historical enforcement records even after operations ceased.

Federal criminal prosecution record

No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for HILL BROTHERS CHEMICAL CO. Verify directly with UVA Corporate Prosecution Registry →

Federal contracts

This location

Obligated (5-yr)

$2.5M

Obligated (all-time)

$6.6M

Awards

Top agency

Department of the Interior

$6.3M

Company-wide — HILL BROTHERS CHEMICAL COMPANY (across 2 entities)

Obligated (5-yr)

$2.5M

Obligated (all-time)

$6.7M

Awards (all-time)

Consolidated across all USAspending recipient entities under this corporate parent — not attributable to this single location.

Top agencies by obligation (this location)

Department of the Interior$6.3M

Department of Defense$139K

Department of Agriculture$76K

Department of State$68K

Largest awards (top 50 of 93)

Department of the Interior
CHEMICALS WASTE WATER TREATMENT PLANT
contract · Last action 2013-07-02
$958,334
Department of the Interior
PURCHASE OF CHEMICAL PRODUCTS
contract · Last action 2018-02-13
$849,851
Department of the Interior
GRAND CANYON NATIONAL PARK (GRCA) REQUIRES CHEMICALS FOR WATER AND WASTEWATER TREATMENT USED AT WASTEWATER WATER TREATMENT PLANTS (SOUTH RIM, NORTH RIM, PHANTOM RANCH), AND WATER TREATMENT (ROARING SPRINGS).
contract · Last action 2026-01-08
$360,213
Department of the Interior
REQUIREMENT FOR WATER/WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2023-05-17
$257,681
Department of the Interior
BPA CALL FOR WATER/WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2024-08-20
$248,842
Department of the Interior
GRCA BPA CALL FOR WATER/WASTEWATER CHEMICALS
contract · Last action 2023-11-09
$229,104
Department of the Interior
BPA CALL FOR WATER/WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2025-03-05
$229,078
Department of the Interior
BULK CHEMICALS FOR YAO BPA CALL 5
contract · Last action 2025-04-08
$200,902
Department of the Interior
DELIVERY ORDER - YAO BULK CHEMICALS
contract · Last action 2024-09-20
$158,782
Department of the Interior
DELIVERY ORDER - BULK CHEMICALS FOR YAO
contract · Last action 2026-01-21
$157,005
Department of the Interior
BULK CHEMICALS FOR YAO-BPA - CALL 4
contract · Last action 2022-06-16
$152,818
Department of the Interior
DELIVERY ORDER - YAO BULK CHEMICALS FOR YAO
contract · Last action 2025-04-15
$132,402
Department of the Interior
BULK CHEMICAL DELIVERY FOR YUMA DESALTING PLANT
contract · Last action 2026-04-12
$131,745
Department of the Interior
CALL 1 FOR CHLORINE, HYDRATED LIME AND AMMONIA
contract · Last action 2020-05-27
$128,868
Department of the Interior
YAO BULK CHEMICALS 25M2 - DELIVERY ORDER #2
contract · Last action 2025-08-01
$122,920
Department of the Interior
BPA CALL FOR WATER/WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2024-01-08
$121,230
Department of the Interior
GRCA - HILL BROTHERS CHEMICAL CO - JUN24
contract · Last action 2024-07-18
$109,000
Department of the Interior
BPA CALL FOR WATER AND WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2021-04-22
$98,541
Department of the Interior
BULK CHEMICAL FOR THE YUMA AREA OFFICE
contract · Last action 2024-09-20
$98,445
Department of the Interior
BPA CALL FOR THE DELIVERY OF BULK CHEMICALS FOR THE MONTHS OF JANUARY AND FEBRUARY 2011 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN.
contract · Last action 2011-05-25
$97,095
Department of the Interior
BPA CALL FOR BULK CHEMICALS FOR THE MONTH OF SEPTEMBER/OCTOBER 2010 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN.
contract · Last action 2010-11-30
$83,475
Department of the Interior
BPA CALL FOR BULK CHEMICALS FOR THE MONTH OF JULY/AUGUST 2010 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN
contract · Last action 2010-12-17
$82,552
Department of Defense
CALCIUM HYPOCHLORITE TABLETS
contract · Last action 2010-03-23
$74,075
Department of the Interior
BULK CHEMICALS FOR YAO - BPA CALL 3
contract · Last action 2021-08-12
$70,343
Department of Defense
12.5% SODIUM HYPOCHLORITE SOLUTION
contract · Last action 2008-03-26
$65,052
Department of the Interior
CHEMICALS FOR GRAND CANYON NATIONAL PARK
contract · Last action 2019-04-22
$57,663
Department of the Interior
DELIVERY ORDER - YAO BULK CHEMICALS
contract · Last action 2025-04-07
$56,694
Department of the Interior
BPA CALL 1 CHEMICALS WASTEWATER
contract · Last action 2023-11-07
$53,846
Department of the Interior
WATER AND WASTEWATER CHEMICALS FOR THE GRAND CANYON NATIONAL PARK FOR AUGUST 2019
contract · Last action 2019-08-14
$53,802
Department of the Interior
BULK CHEMICALS FOR DECEMBER 2010
contract · Last action 2011-10-26
$53,509
Department of the Interior
BPA CALL FOR CHEMICALS FOR THE SOUTH RIM WATER AND WASTEWATER PLANT AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2019-04-01
$49,566
Department of the Interior
CHEMICALS FOR WATER AND WASTEWATER AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2018-07-19
$48,447
Department of the Interior
GRCA UNFUNDED CHEMICAL PURCHASE RATIFICA
contract · Last action 2025-08-12
$47,287
Department of the Interior
BPA CALL FOR BULK CHEMICALS FOR THE MONTH OF NOVEMBER 2010 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN.
contract · Last action 2011-01-21
$44,790
Department of State
SODIUM HYPOCHLORITE TOTES
contract · Last action 2023-05-05
$44,418
Department of the Interior
BPA CALL FOR THE DELIVERY OF BULK CHEMICALS FOR THE MONTH OF MARCH 2011 TO OPEATE THE WQIC AND PILOT RUN OPERATION
contract · Last action 2011-03-01
$43,258
Department of the Interior
GRCA - HILL BROS CHEMICALS 05-29-19
contract · Last action 2019-12-27
$43,183
Department of the Interior
BPA CALL FOR BULK CHEMICALS FOR THE MONTH OF MAY 2010 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN
contract · Last action 2010-09-13
$43,039
Department of the Interior
BPA CALL FOR WATER AND WASTEWATER CHEMICALS FOR GRAND CANYON NATIONAL PARK
contract · Last action 2020-09-02
$34,358
Department of the Interior
CHEMICALS FOR THE GRAND CANYON NATIONAL PARK
contract · Last action 2018-09-06
$32,610
Department of the Interior
WATER AND WASTEWATER CHEMICALS AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2018-09-06
$31,751
Department of the Interior
BPA CALL FOR BULK CHEMICALS FOR THE MONTH OF JUNE 2010 TO OPERATE THE YUMA DESALTING PLANT PILOT RUN.
contract · Last action 2010-09-14
$30,427
Department of the Interior
BLANKET PURCHASE AGREEMENT CALL FOR CHEMICALS AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2020-01-08
$29,697
Department of the Interior
BLANKET PURCHASE AGREEMENT FOR WATER AND WASTEWATER CHEMICALS AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2019-12-19
$28,122
Department of the Interior
CHEMICALS FOR THE WATER WASTEWATER TREATMENT PLANT AT THE GRAND CANYON NATIONAL PARK
contract · Last action 2020-01-09
$27,518
Department of the Interior
CHEMICALS FOR THE WATER AND WASTEWATER TREATMENT PLANT AT THE GRAND CANYON NATIONAL PARK.
contract · Last action 2018-12-03
$27,482
Department of the Interior
BPA CALL FOR WATER AND WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2020-03-10
$25,630
Department of the Interior
BPA CALL FOR WATER AND WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2020-07-15
$24,674
Department of State
FERRIC CHLORIDE
contract · Last action 2023-03-07
$24,077
Department of the Interior
BPA CALL FOR WATER AND WASTEWATER CHEMICALS FOR GRCA
contract · Last action 2020-03-18
$23,687

Federal contract dollars to this establishment. Primary NAICS: 325180 - OTHER BASIC INORGANIC CHEMICAL MANUFACTURING. Last action: 2026-04-12. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.

Inspection history

Date	Trigger	Violations	Serious	Penalty
1987-12-11	Planned	0	—	$0

Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.

In the news

Part of a larger organization

HILL BROTHERS CHEMICAL CO is one of 2 establishments rolled up under the parent organization Hill Brothers Chemical Company.

Federal enforcement records on this page represent activity at this specific establishment only. The full enforcement footprint of Hill Brothers Chemical Company across all 2 of its tracked locations is viewable on the parent profile.