MINE & MILL HYDRAULICS, INC.
1200 N. BOULDER, BUILDING #2, HELENA, MT 59601
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
May 11, 1995#102801412May 11, 1995Referral (C) · Partial scope, Health#102801412$00 viol.0 violations$0 in penalties
Inspection #102801412
Dates
- Opened
- May 11, 1995
- Closing Conference Date
- May 11, 1995
- Closed
- Jun 30, 1995
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 31
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 1820 E. Lyndale Ave., Helena, MT 59601
- 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 4, 1992#107216855Mar 4, 1992Follow-Up (F) · Partial scope, Safety#107216855$00 viol.0 violations$0 in penalties
Inspection #107216855
Dates
- Opened
- Mar 4, 1992
- Closing Conference Date
- Mar 4, 1992
- Closed
- Mar 10, 1992
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 9
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 1200 N. Boulder, Building #2, Helena, MT 59601
- 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.
Jul 17, 1991#107214785Jul 17, 1991Complaint (B) · Complete scope, Safety#107214785$2001 viol.1 violation$200 in penalties
Inspection #107214785
Dates
- Opened
- Jul 17, 1991
- Closing Conference Date
- Jul 17, 1991
- Closed
- Mar 19, 1992
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 9
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 repeat
- Initial Penalties
- $200
- Penalties on Record
- $200
- Site Address
- 1200 N. Boulder, Building #2, Helena, MT 59601
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.305 Electrical - Wiring Methods, Components, and Equipment OSHA citation code: 19100305 G01 I | Repeat | 1 | 3 | $200 | $200 | Aug 8, 1991 | - | - |
Mar 28, 1991#107215683Mar 28, 1991Complaint (B) · Partial scope, Safety#107215683$1,37412 viol.12 violations$1,374 in penalties
Inspection #107215683
Dates
- Opened
- Mar 28, 1991
- Closing Conference Date
- Mar 28, 1991
- Closed
- Mar 19, 1992
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 9
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 12
- Violation Types
- 8 serious, 4 other-than-serious
- Initial Penalties
- $2,775
- Penalties on Record
- $1,374
- Site Address
- 1200 N. Boulder, Building #2, Helena, MT 59601
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (10 of 12 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C04 I | Serious | 1 | 1 | $525 | $263 | May 6, 1991 | - | - |
| 01001B | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C07 IV | Serious | 1 | 1 | $0 | $0 | May 6, 1991 | - | - |
| 01002 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 1 | 3 | $750 | $375 | May 20, 1991 | - | - |
| 01003 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A05 | Serious | 1 | 3 | $375 | $173 | May 6, 1991 | - | - |
| 01004 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 C02 I | Serious | 1 | 2 | $300 | $150 | May 6, 1991 | - | - |
| 01005 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 D01 | Serious | 1 | 5 | $300 | $150 | May 6, 1991 | - | - |
| 01006 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 F01 | Serious | 1 | 1 | $225 | $113 | May 6, 1991 | - | - |
| 01007 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 F03 | Serious | 1 | 2 | $300 | $150 | May 6, 1991 | - | - |
| 02001 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Other | 1 | 1 | $0 | $0 | May 6, 1991 | - | - |
| 02002 | 1910.179 Overhead and Gantry Cranes OSHA citation code: 19100179 J02 IV | Other | 1 | 1 | $0 | $0 | May 6, 1991 | - | - |
Showing the 10 violations listed first by citation identifier. This inspection has 12 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Mar 19, 1991#107214512Mar 19, 1991Complaint (B) · Partial scope, Health#107214512$90014 viol.14 violations$900 in penalties
Inspection #107214512
Dates
- Opened
- Mar 19, 1991
- Closing Conference Date
- Jun 4, 1991
- Closed
- Nov 26, 1991
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 8
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 14
- Violation Types
- 5 serious, 9 other-than-serious
- Initial Penalties
- $1,800
- Penalties on Record
- $900
- Site Address
- 1200 N. Boulder, Building #2, Helena, MT 59601
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Chemical Exposure Sampling13 substances sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| Antimony and Compounds (as Sb) | 2 | 0 | mg/m³ |
| Beryllium and Beryllium Compounds (as Be) | 1 | 0 | mg/m³ |
| Cadmium Fume (as Cd) | 2 | 0 | mg/m³ |
| Chromium, Metal and Insoluble Salts | 2 | 0 - 0.0092 | mg/m³ |
| Cobalt, Metal, Dust and Fume (as Co) | 2 | 0 | mg/m³ |
| Copper Fume (as Cu) | 2 | 0 - 0.0083 | mg/m³ |
| Iron Oxide Fume | 2 | 0 - 4.8055 | mg/m³ |
| Lead, Inorganic (as Pb) | 2 | 0 | mg/m³ |
| Manganese Fume (as Mn) | 2 | 0 - 0.4253 | mg/m³ |
| Molybdenum (as Mo), Insoluble Compounds (Total Dust) | 2 | 0 - 0.0025 | mg/m³ |
| Nickel, Metal and Insoluble compounds (as Ni) | 2 | 0 | mg/m³ |
| Vanadium fume (as V2O5) | 2 | 0 | mg/m³ |
| Zinc Oxide Fume | 2 | 0 - 0.0048 | mg/m³ |
Violations
Violation list (10 of 14 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.1200 Hazard Communication OSHA citation code: 19101200 E01 | Serious | 1 | 8 | $450 | $225 | Jul 31, 1991 | - | - |
| 01002A | 1910.1200 Hazard Communication OSHA citation code: 19101200 F05 I | Serious | 1 | 8 | $450 | $225 | Jul 31, 1991 | - | - |
| 01002B | 1910.1200 Hazard Communication OSHA citation code: 19101200 F05 II | Serious | 1 | 8 | $0 | $0 | Jul 31, 1991 | - | - |
| 01003 | 1910.1200 Hazard Communication OSHA citation code: 19101200 G08 | Serious | 1 | 8 | $450 | $225 | Jul 31, 1991 | - | - |
| 01004 | 1910.1200 Hazard Communication OSHA citation code: 19101200 H | Serious | 1 | 8 | $450 | $225 | Jul 31, 1991 | - | - |
| 02001 | 1903.2 Posting of Notices; Availability of the Act, Regulations and Applicable Standards OSHA citation code: 19030002 A01 | Other | 1 | 1 | $0 | $0 | Jun 13, 1991 | - | - |
| 02002A | 1910.22 Walking-Working Surfaces - General Requirements OSHA citation code: 19100022 A01 | Other | 1 | 1 | $0 | $0 | Jun 17, 1991 | - | - |
| 02002B | 1910.141 Sanitation OSHA citation code: 19100141 A03 I | Other | 1 | 1 | $0 | $0 | Jun 17, 1991 | - | - |
| 02003 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Other | 1 | 1 | $0 | $0 | Jun 18, 1991 | - | - |
| 02004A | 1910.134 Respiratory Protection OSHA citation code: 19100134 B01 | Other | 1 | 1 | $0 | $0 | Jul 31, 1991 | - | - |
Showing the 10 violations listed first by citation identifier. This inspection has 14 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
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: OSHA chemical exposure sampling data (OSHA Information System). P = Personal (worker breathing zone), A = Area (general air). Rows marked QC are analytical quality control measurements, not chemical exposures. OSHA PEL (Permissible Exposure Limit) values from the OSHA Occupational Chemical Database, matched via IMIS substance code (analyte code) (exact government key).
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, 1991 to 1995. 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.