Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,197,549Inspections Most recent open 2026-08-27 Last loaded 2026-08-31

OSHA Inspection: NATIONAL PARK SERVICE GRAND CANYON, SOUTH RIM WASTE WATER TREATMENT PLANT

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of NATIONAL PARK SERVICE GRAND CANYON, SOUTH RIM WASTE WATER TREATMENT PLANT in 1 ROWE WELL ROAD, GRAND CANYON, AZ 86023 (NAICS 712190). OSHA activity number 339941684.

What this inspection record means

OSHA opens inspections for many reasons: routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
1 ROWE WELL ROAD
City
GRAND CANYON
State
AZ
ZIP
86023
Mailing
P.O. BOX 129, GRAND CANYON, AZ 86023
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
Non-union (B)
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
712190
Employees
29
Ownership type
Federal government (D)

14 citations on file for this inspection.

1910.23 A08 II

Serious Gravity 5 2 instances 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 20, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.23(a)(8)(ii): Every floor hole into which persons could accidently walk was not guarded by a floor hole cover of standard strength and construction.  (a) At the NPS South Rim Waste Water Treatment Office, there was a 13 inches long, 7 inches wide and 15 foot deep hole in the floor above the pump room.  (b) At the NPS South Rim Waste Water Treatment Head Works Bldg, there were many floor holes including a 9 inch long, 8 inches wide and 4 foot deep hole in the floor above the water raceway to the bar screen process.
Recent events (1)
  • · Z (S) $0

1910.23 C01

Serious Gravity 5 1 instance 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.23(c)(1): Open-sided floors and/or platforms four feet or more above adjacent floor or ground level were not guarded with standard railings (or equivalent) and toeboards.  Note:  Toeboards are only required when persons can pass, there is moving equipment or there is equipment with which falling materials could create a hazard.  (a) At the NPS South Rim Waste Water Treatment head works bldg., there was a 23 inch gap in the guard railing and employees were exposed to a fall into a 10 foot deep aerator grit chamber filled with water.
Recent events (1)
  • · Z (S) $0

1910.36 G02

Serious Gravity 1 1 instance 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.36(g)(2): Exit access(es) were not at least 28 inches (71.1 cm) wide at all points.  (a) At the NPS South Waste Water Treatment Supervisor's office, the exit access was 21 inches and obstructed by the printer and cabinet.
Recent events (1)
  • · Z (S) $0

1910.157 E02

Serious Gravity 1 2 instances 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.157(e)(2): Portable fire extinguishers were not visually inspected at least monthly.  (a) At the NPS South Rim Waste Water Treatment, inspection tags on fire extinguishers indicated the last inspection dates were January and June 2014 respectively.
Recent events (1)
  • · Z (S) $0

1910.179 B05

Serious Gravity 5 2 instances 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.179(b)(5): The rated load of crane(s) was not plainly marked on each side of the crane.  (a) At the NPS South Rim waste Water Treatment Reclaim Building, there was an orange overhead crane that had been installed with the building 35 years ago and the rated load was not posted.  (b) At the NPS South Rim waste Water Treatment Head Works Building, there was an orange overhead crane that had been installed with the building approximately 35 years ago and the rated load was not posted.
Recent events (1)
  • · Z (S) $0

1910.179 J03

Serious Gravity 5 2 instances 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.179(j)(3): A complete periodic inspection of crane(s) had not been conducted in the past 12 months:  (a) At the NPS South Rim waste Water Treatment Reclaim Building, the orange overhead crane had not been inspected/certified for at least ten years.  (b) At the NPS South Rim waste Water Treatment Head Works Building, the orange overhead crane had not been inspected/certified for at least ten years.
Recent events (1)
  • · Z (S) $0

1910.212 A01

Serious Gravity 5 3 instances 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 20, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.212(a)(1): One or more methods of machine guarding was not provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and automatic start up.  (a) At the Head Works Building, the grit classifier pump did not have a cover to protect employees from exposure to the rotating parts.  (b) At the Reclaim Building, the pond backwash recycle pump did not have cover and the reclaim pump #1 guard partially covered the rotating parts and was not secured in place.
Recent events (1)
  • · Z (S) $0

1910.303 B08 II

Serious Gravity 1 1 instance 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 20, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.303(b)(8)(ii): Electric equipment that depends on the natural circulation of air and convection principles for cooling of exposed surfaces were not installed so that room airflow over such surfaces is not prevented by walls or by adjacent installed equipment. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces were not provided to dissipate rising warm air.  (a) Reclaim Building, in the Pump room, the pad mounted air cooled transformer was obstructed by a metal locker and other materials blocking air circulation.
Recent events (1)
  • · Z (S) $0

1910.303 F02

Serious Gravity 1 3 instances 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.303(f)(2): Each service, feeder, and branch circuit, at its disconnecting means or overcurrent device, was not legibly marked to indicate its purpose, nor located and arranged so the purpose was evident.  (a) At the NPS South Rim waste Water Treatment Laboratory, The L2, L10 and L12 circuit panels had breakers that were not marked including the breaker for the outlet receptacles next to the sink.
Recent events (1)
  • · Z (S) $0

1910.303 G01 II

Serious Gravity 1 2 instances 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 20, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.303(g)(1)(ii): The required working space about electric equipment rated 600 volts, nominal, or less to ground, was used for storage.  (a) At the NPS South Rim waste Water Treatment Main Power Room, the MCC1 breaker switches were obstructed by brown boxes of materials that were stored in front of the switches.
Recent events (1)
  • · Z (S) $0

1910.304 B03 I

Serious Gravity 5 4 instances 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.304(b)(3)(i): All 125-volt, single-phase, 15- and 20-ampere receptacles installed in bathrooms or wet locations were not equipped with ground-fault circuit-interrupter protection for personnel.  (a) At the NPS South Rim waste Water Treatment Wet Lab, electrical outlet receptacles next to the sink were not GFCI protected.
Recent events (1)
  • · Z (S) $0

1910.305 G01 IV A

Serious Gravity 1 2 instances 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.305(g)(1)(iv)(A): Flexible cords and/or cables were used as a substitute for the fixed wiring of a structure.  (a) At the NPS South Rim waste Water Treatment Reclaim Building, flexible cords were used to power emergency lighting systems.
Recent events (1)
  • · Z (S) $0

1910.22 A01

Repeat Gravity 1 1 instance 2 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.22(a)(1): All places of employment, passageways, storerooms or service rooms were not kept clean and orderly or in a sanitary condition.  (a) At the NPS South Rim waste Water Treatment Supervisor's office had materials laying on the floor that was blocking walkways and creating a tripping hazard.  (b) At the Reclaim Building Pump Room, there was water on the floor which created a slipping hazard.  The National Park Service was previously cited for a violation of this occupational safety and health standard or its equivalent standard 1910.22(a)(1), which was contained in OSHA inspection number 315884049, citation number1, item number 1, and was affirmed as a final order on 12/16/2011 with respect to a workplace located at Haleakala National Park, Makawao, HI 96768.
Recent events (1)
  • · Z (R) $0

1910.176 B

Other-than-serious 1 instance 4 exposed
Issued
Jan 5, 2015
Abate by
Jan 29, 2015
Penalty
Initial $0 · Current $0
29 CFR 1910.176(b): Material stored in tiers was not stacked, blocked, interlocked or limited in height so that it was stable and secure against sliding and collapse.    (a) At the NPS South Rim waste Water Treatment Reclaim Building, a box of filters on top of the storage bin was hanging over the edge and supported by the edge of a piece of plywood.
Recent events (1)
  • · Z (O) $0

View National Park Service Grand Canyon, South RIM Waste Water Treatment Plant's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). OSHA publishes its own view of this case as inspection number 339941684.

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