INTERSTATE MECHANICAL CORPORATION
4051 N. HIGLEY RD., MESA, AZ 85215
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Nov 26, 2003#307278366Nov 26, 2003Planned (H) · Complete scope, Safety#307278366$00 viol.0 violations$0 in penalties
Inspection #307278366
Dates
- Opened
- Nov 26, 2003
- Closing Conference Date
- Dec 3, 2003
- Closed
- Dec 3, 2003
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 29
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 53 South Sirrine, Mesa, AZ 85201
- Industry
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
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.
Feb 28, 2003#306331208Feb 28, 2003Planned (H) · Complete scope, Safety#306331208$01 viol.1 violation$0 in penalties
Inspection #306331208
Dates
- Opened
- Feb 28, 2003
- Closing Conference Date
- Feb 28, 2003
- Closed
- Feb 28, 2003
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 18
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 64 South Sirrine, Mesa, AZ 85201
- Industry
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
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 | 1926.251 Rigging Equipment for Material Handling OSHA citation code: 19260251 A01 | Other | 1 | 5 | $0 | $0 | Apr 9, 2003 | - | - |
May 24, 2000#303616817May 24, 2000Planned (H) · Complete scope, Safety#303616817$00 viol.0 violations$0 in penalties
Inspection #303616817
Dates
- Opened
- May 24, 2000
- Closing Conference Date
- May 24, 2000
- Closed
- May 24, 2000
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 32
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 6644 East Baywood, Mesa, AZ 85206
- 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.
Feb 7, 1996#126963297Feb 7, 1996Follow-Up (F) · Partial scope, Health#126963297$00 viol.0 violations$0 in penalties
Inspection #126963297
Dates
- Opened
- Feb 7, 1996
- Closing Conference Date
- Feb 7, 1996
- Closed
- Feb 14, 1996
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 285
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 4051 N. Higley Rd., Mesa, AZ 85215
- 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 16, 1994#115625147Sep 16, 1994FatalityAccident (A) · Partial scope, HealthFatality#115625147$6,0515 viol.5 violations$6,051 in penalties
Inspection #115625147
Dates
- Opened
- Sep 16, 1994
- Closing Conference Date
- Oct 31, 1994
- Contested
- Mar 27, 1995
- Final Order
- Jun 8, 1995
- Closed
- Feb 15, 1996
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 230
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 5
- Violation Types
- 5 serious
- Initial Penalties
- $10,400
- Penalties on Record
- $6,051
- Site Address
- 4051 N. Higley Rd., Mesa, AZ 85215
- 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.
One employee killed, six injured in chemical explosion
Violations
Violation list (5 of 5 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1926.59 Hazard Communication OSHA citation code: 19260059 H | Serious | 1 | 2 | $7,000 | $4,066 | Apr 6, 1995 | Mar 27, 1995 | Jun 8, 1995 |
| 01001B | 1926.64 Process Safety Management of Highly Hazardous Chemicals OSHA citation code: 19260064 H03 II | Serious | 1 | 2 | $0 | $0 | Apr 6, 1995 | Mar 27, 1995 | Jun 8, 1995 |
| 01001C | 1926.64 Process Safety Management of Highly Hazardous Chemicals OSHA citation code: 19260064 H03 V | Serious | 1 | 2 | $0 | $0 | Mar 19, 1995 | Mar 27, 1995 | Jun 8, 1995 |
| 01002 | 1926.64 Process Safety Management of Highly Hazardous Chemicals OSHA citation code: 19260064 H03 III | Serious | 1 | 2 | $1,275 | $746 | Apr 6, 1995 | Mar 27, 1995 | Jun 8, 1995 |
| 01003 | 1926.64 Process Safety Management of Highly Hazardous Chemicals OSHA citation code: 19260064 H03 IV | Serious | 1 | 2 | $2,125 | $1,239 | Mar 19, 1995 | Mar 27, 1995 | Jun 8, 1995 |
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.
5 inspections, 1994 to 2003. 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.
Standards cited
Industry comparison
BLS 2024 survey: plumbing, heating, and air-conditioning contractors reported 3.0 injuries and illnesses per 100 full-time workers (total recordable cases, national, private industry; relative standard error 5.2%; NAICS 23822 level). This is an industry-wide average from a federal survey, not a measurement of this establishment. Source