NORTHERN PIPELINE CONSTRUCTION CO.
4301 NORTH 87TH DRIVE, PHOENIX, AZ 85037
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Feb 8, 2002#305192593Feb 8, 2002Planned (H) · Complete scope, Safety#305192593$00 viol.0 violations$0 in penalties
Inspection #305192593
Dates
- Opened
- Feb 8, 2002
- Closing Conference Date
- Feb 8, 2002
- Closed
- Feb 8, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 10
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 32nd And Broadway, Phoenix, AZ 85040
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Mar 30, 1998#126980275Mar 30, 1998Planned (H) · Complete scope, Safety#126980275$01 viol.1 violation$0 in penalties
Inspection #126980275
Dates
- Opened
- Mar 30, 1998
- Closing Conference Date
- Mar 30, 1998
- Closed
- Jul 8, 1998
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 2
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 2780 West Peoria Avenue, Phoenix, AZ 85209
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.59 Hazard Communication OSHA citation code: 19260059 G08 | Other | 1 | 1 | $0 | $0 | Jul 9, 1998 | - | - |
Feb 25, 1998#126981414Feb 25, 1998Planned (H) · Complete scope, Safety#126981414$1,1242 viol.2 violations$1,124 in penalties
Inspection #126981414
Dates
- Opened
- Feb 25, 1998
- Closing Conference Date
- Feb 25, 1998
- Closed
- Jun 15, 1998
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 5
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 serious
- Initial Penalties
- $1,500
- Penalties on Record
- $1,124
- Site Address
- 3302 North 7th Street, Phoenix, AZ 85014
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.651 Excavations - Specific Excavation Requirements OSHA citation code: 19260651 C02 | Serious | 1 | 3 | $750 | $562 | Apr 17, 1998 | - | - |
| 01002 | 1926.652 Excavations - Protection of Employees OSHA citation code: 19260652 A01 | Serious | 1 | 3 | $750 | $562 | Apr 17, 1998 | - | - |
Jun 1, 1988#103781191Jun 1, 1988Planned (H) · Complete scope, Safety#103781191$00 viol.0 violations$0 in penalties
Inspection #103781191
Dates
- Opened
- Jun 1, 1988
- Closing Conference Date
- Jun 1, 1988
- Closed
- Jun 10, 1988
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 4
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 7th Ave & Fillmore, Phoenix, AZ 85003
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Nov 4, 1987#103727350Nov 4, 1987Follow-Up (F) · No Inspection scope, Safety#103727350$00 viol.0 violations$0 in penalties
Inspection #103727350
Dates
- Opened
- Nov 4, 1987
- Closing Conference Date
- Nov 4, 1987
- Closed
- Nov 12, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- Not recorded
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 4th Street & Southern Ave., Phoenix, AZ 85202
- Industry
- Not classified in OSHA's inspection record.
Follow-Up Inspection: This inspection record is categorized as a follow-up inspection in the DOL OSHA enforcement data. Follow-up inspections are used by OSHA after earlier enforcement activity and can be used to check later compliance status.
Sep 21, 1987#103725560Sep 21, 1987Planned (H) · Complete scope, Safety#103725560$00 viol.0 violations$0 in penalties
Inspection #103725560
Dates
- Opened
- Sep 21, 1987
- Closing Conference Date
- Sep 21, 1987
- Closed
- Sep 23, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 3
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 5101 W. Indian School Rd., Phoenix, AZ 85033
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Aug 13, 1987#103717641Aug 13, 1987Planned (H) · Complete scope, Safety#103717641$6403 viol.3 violations$640 in penalties
Inspection #103717641
Dates
- Opened
- Aug 13, 1987
- Closing Conference Date
- Aug 13, 1987
- Closed
- Dec 8, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 325
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 1 serious, 2 other-than-serious
- Initial Penalties
- $1,000
- Penalties on Record
- $640
- Site Address
- 4th Street & Southern Ave., Phoenix, AZ 85202
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01002 | 1926.652 Excavations - Protection of Employees OSHA citation code: 19260652 E | Serious | 1 | 3 | $1,000 | $640 | Aug 28, 1987 | - | - |
| 02001 | 1926.650 Excavations - Scope and Application OSHA citation code: 19260650 E | Other | 1 | 3 | $0 | $0 | Aug 28, 1987 | - | - |
| 02002 | 1926.652 Excavations - Protection of Employees OSHA citation code: 19260652 H | Other | 1 | 3 | $0 | $0 | Aug 28, 1987 | - | - |
Apr 16, 1987#103717062Apr 16, 1987Referral (C) · Complete scope, Safety#103717062$00 viol.0 violations$0 in penalties
Inspection #103717062
Dates
- Opened
- Apr 16, 1987
- Closing Conference Date
- Apr 16, 1987
- Closed
- Apr 22, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 325
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 43rd Ave. & Tuckey Lane, Phoenix, AZ 85019
- Industry
- Not classified in OSHA's inspection record.
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Mar 13, 1987#103708335Mar 13, 1987Planned (H) · Complete scope, Safety#103708335$00 viol.0 violations$0 in penalties
Inspection #103708335
Dates
- Opened
- Mar 13, 1987
- Closing Conference Date
- Mar 13, 1987
- Closed
- Mar 20, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 4
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 3333 West Thunderbird, Phoenix, AZ 85029
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Aug 22, 1986#2559375Aug 22, 1986Accident (A) · Complete scope, Safety#2559375$01 viol.1 violation$0 in penalties
Inspection #2559375
Dates
- Opened
- Aug 22, 1986
- Closing Conference Date
- Sep 11, 1986
- Closed
- Mar 9, 1988
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 33
- Related Activity
- 1 referral, 1 accident
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 11457 N. 24th Ave., Phoenix, AZ 85029
- Industry
- Not classified in OSHA's inspection record.
Accident Inspection: This inspection record is categorized as an accident inspection in the U.S. Department of Labor OSHA enforcement data. Employers must report work-related fatalities within 8 hours, and work-related inpatient hospitalizations, amputations, or losses of an eye within 24 hours. An accident-related inspection does not by itself determine fault.
Incident Investigation Summaries
Incident investigation summaries linked to this inspection through OSHA's accident and injury enforcement data. These summaries describe the reported incident. The enforcement outcome for the linked inspection is in the inspection details above.
Employee became ill when he inhaled natural gas
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 02001 | 1926.103 Respiratory Protection (Construction) OSHA citation code: 19260103 A01 | Other | 1 | 14 | $0 | $0 | Oct 2, 1986 | - | - |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Source: U.S. Department of Labor OSHA incident investigation data (`osha_accident` + `osha_accident_injury`). Linked via `rel_insp_nr` to the inspection activity number (exact government key). Injury, body part, source and event values are OSHA's own codes. OSHA states that these fields are not coded according to the requirements under the Occupational Injury and Illness Classification System (OIICS). Only the values present in the OSHA record are listed; an incident with no value that resolves in OSHA's code table shows "Injury details not recorded". Where a record covers several people, each field lists every value recorded across them.
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
13 inspections, 1984 to 2002. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.