NORTHERN AGGREGATES INC
RIDGEWOOD SUMMIT HIGHWAY 101, WILLITS, CA 95490
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Jun 25, 2025#348335100Jun 25, 2025Planned (H) · Complete scope, Safety#348335100$00 viol.0 violations$0 in penalties
Inspection #348335100
Dates
- Opened
- Jun 25, 2025
- Closing Conference Date
- Aug 13, 2025
- Closed
- Aug 25, 2025
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
- 16410 N Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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.
Jan 10, 2023#346431869Jan 10, 2023Accident (A) · Partial scope, Safety#346431869$00 viol.0 violations$0 in penalties
Inspection #346431869
Dates
- Opened
- Jan 10, 2023
- Closing Conference Date
- Apr 27, 2023
- Closed
- Apr 27, 2023
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 10
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 500 Cropley Lane, Willits, CA 95490
- Industry
- 212311 Dimension Stone Mining and Quarrying
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.
Mar 28, 2018#343056479Mar 28, 2018Planned (H) · Complete scope, Safety#343056479$3502 viol.2 violations$350 in penalties
Inspection #343056479
Dates
- Opened
- Mar 28, 2018
- Closing Conference Date
- Aug 31, 2018
- Final Order
- Sep 27, 2018
- Closed
- Oct 1, 2018
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 9
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $350
- Penalties on Record
- $350
- Site Address
- 16410 N Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 | 3212(A)(2)(A) Floor Openings, Floor Holes, Skylights and Roofs | Other | 1 | 3 | $150 | $150 | Sep 24, 2018 | - | Sep 27, 2018 |
| 01002 | 5572(C) Emergency Disconnect Switches | Other | 1 | 9 | $200 | $200 | Sep 24, 2018 | - | Sep 27, 2018 |
Mar 21, 2017#342191640Mar 21, 2017Accident (A) · Partial scope, Safety#342191640$10,8001 viol.1 violation$10,800 in penalties
Inspection #342191640
Dates
- Opened
- Mar 21, 2017
- Closing Conference Date
- May 8, 2017
- Contested
- May 8, 2017
- Final Order
- Jul 28, 2017
- Closed
- Sep 22, 2017
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 17
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 serious
- Initial Penalties
- $12,600
- Penalties on Record
- $10,800
- Site Address
- 500 Cropley Lane, Willits, CA 95490
- Industry
- 212311 Dimension Stone Mining and Quarrying
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 operating grinder is injured in kickback
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 3583(D) Portable Abrasive Wheels | Serious | 1 | 1 | $12,600 | $10,800 | May 8, 2017 | Jul 28, 2017 |
May 11, 2016#341467637May 11, 2016Planned (H) · Complete scope, Safety#341467637$20,41520 viol.20 violations$20,415 in penalties
Inspection #341467637
Dates
- Opened
- May 11, 2016
- Closing Conference Date
- Jun 27, 2016
- Final Order
- Sep 7, 2016
- Closed
- Feb 16, 2017
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 7
Violations and Penalties
- Total Violations
- 20
- Violation Types
- 3 serious, 17 other-than-serious
- Initial Penalties
- $20,415
- Penalties on Record
- $20,415
- Site Address
- 16680 North Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 (5 of 20 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 3220(B) Emergency Action Plan | Other | 1 | 7 | $165 | $165 | Aug 24, 2016 | - | Sep 7, 2016 |
| 01002 | 3221(B) Fire Prevention Plan | Other | 1 | 7 | $225 | $225 | Aug 24, 2016 | - | Sep 7, 2016 |
| 01003 | 3221(C) Fire Prevention Plan | Other | 1 | 7 | $225 | $225 | Aug 24, 2016 | - | Sep 7, 2016 |
| 01004 | 3395(D)(1) Heat Illness Prevention in Outdoor Places of Employment | Other | 1 | 7 | $225 | $225 | Aug 24, 2016 | - | Sep 7, 2016 |
| 01005 | 3395(D)(3) Heat Illness Prevention in Outdoor Places of Employment | Other | 1 | 7 | $225 | $225 | Aug 24, 2016 | - | Sep 7, 2016 |
Showing the 5 violations listed first by citation identifier. This inspection has 20 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Apr 28, 2014#317134229Apr 28, 2014Planned (H) · Complete scope, Safety#317134229$7654 viol.4 violations$765 in penalties
Inspection #317134229
Dates
- Opened
- Apr 28, 2014
- Closing Conference Date
- Apr 30, 2014
- Closed
- Aug 28, 2014
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 7
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 4 other-than-serious
- Initial Penalties
- $765
- Penalties on Record
- $765
- Site Address
- Mile Post 40.77 Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 (4 of 4 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 2375.18 Clearance from Ground | Other | 2 | 1 | $165 | $165 | May 6, 2014 | - | - |
| 01002 | 4851 Arc Welding and Cutting OSHA citation code: 4851 E02 | Other | 1 | 1 | $150 | $150 | May 6, 2014 | - | - |
| 01003 | 4851 Arc Welding and Cutting OSHA citation code: 4851 G | Other | 1 | 1 | $225 | $225 | May 6, 2014 | - | - |
| 01004 | 5158 Other Confined Space Operations OSHA citation code: 5158 C01 A | Other | 1 | 7 | $225 | $225 | May 10, 2014 | - | - |
Dec 5, 2013#317133056Dec 5, 2013Planned (H) · No Inspection scope, Safety#317133056$00 viol.0 violations$0 in penalties
Inspection #317133056
Dates
- Opened
- Dec 5, 2013
- Closing Conference Date
- Dec 5, 2013
- Closed
- Dec 10, 2013
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
- Ridgewood Summit Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 9, 2012#314450511Aug 9, 2012Planned (H) · Complete scope, Safety#314450511$01 viol.1 violation$0 in penalties
Inspection #314450511
Dates
- Opened
- Aug 9, 2012
- Closing Conference Date
- Aug 9, 2012
- Closed
- Aug 24, 2012
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 8
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Mile Post 40.77 Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 | 2340.22 Identification of Equipment OSHA citation code: 23400022 A | Other | 1 | - | $0 | $0 | Aug 29, 2012 | - | - |
Aug 13, 2008#311723795Aug 13, 2008Planned (H) · Complete scope, Safety#311723795$2001 viol.1 violation$200 in penalties
Inspection #311723795
Dates
- Opened
- Aug 13, 2008
- Closing Conference Date
- Sep 3, 2008
- Closed
- Nov 18, 2008
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 13
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $200
- Penalties on Record
- $200
- Site Address
- Mile Post 40.77 Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 | 2340.22 Identification of Equipment OSHA citation code: 23400022 A | Other | 2 | 1 | $200 | $200 | Aug 13, 2008 | - | - |
Apr 24, 2007#309992139Apr 24, 2007Planned (H) · Complete scope, Safety#309992139$1,7052 viol.2 violations$1,705 in penalties
Inspection #309992139
Dates
- Opened
- Apr 24, 2007
- Closing Conference Date
- Apr 26, 2007
- Closed
- Feb 22, 2008
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 7
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 repeat, 1 other-than-serious
- Initial Penalties
- $1,705
- Penalties on Record
- $1,705
- Site Address
- Mile Post 40.77 Highway 101, Willits, CA 95490
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
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 | 6966 Supervision OSHA citation code: 6966 C | Other | 1 | 7 | $655 | $655 | May 8, 2007 | - | - |
| 02001 | 7014 Private Roads OSHA citation code: 7014 H | Repeat | 1 | 1 | $1,050 | $1,050 | Apr 24, 2007 | - | - |
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.
21 inspections, 1991 to 2025. 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.