PLUM CREEK DBA NORTHWEST LUMBER, INC.
500 12 AVE. WEST, COLUMBIA FALLS, MT 59912 · NAICS 321219 Reconstituted Wood Product Manufacturing
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Aug 7, 2002#304404825Aug 7, 2002Follow-Up (F) · Partial scope, Health#304404825$15,0001 viol.1 violation$15,000 in penalties
Inspection #304404825
Dates
- Opened
- Aug 7, 2002
- Closing Conference Date
- Aug 7, 2002
- Closed
- Oct 17, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 150
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 repeat
- Initial Penalties
- $25,000
- Penalties on Record
- $15,000
- Site Address
- 500 12 Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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.
Chemical Exposure Sampling1 substance sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| Formaldehyde | 1 | 8.3578711 | ppm |
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.1048 Formaldehyde OSHA citation code: 19101048 L04 | Repeat | 6 | 4 | $25,000 | $15,000 | Oct 28, 2002 | - | - |
Aug 6, 2002#304405145Aug 6, 2002Follow-Up (F) · Partial scope, Health#304405145$00 viol.0 violations$0 in penalties
Inspection #304405145
Dates
- Opened
- Aug 6, 2002
- Closing Conference Date
- Aug 6, 2002
- Closed
- Aug 19, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 220
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 500 12th Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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.
Mar 21, 2002#304400641Mar 21, 2002Unprogrammed Related (G) · Partial scope, Safety#304400641$9382 viol.2 violations$938 in penalties
Inspection #304400641
Dates
- Opened
- Mar 21, 2002
- Closing Conference Date
- Apr 11, 2002
- Closed
- May 16, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 240
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 serious, 1 other-than-serious
- Initial Penalties
- $1,875
- Penalties on Record
- $938
- Site Address
- 500 12 Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
Unprogrammed Related Inspection: This inspection record is categorized as an unprogrammed related inspection in the DOL OSHA enforcement data. The public DOL category label is preserved here without adding extra interpretation beyond the government label.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.265 Sawmills OSHA citation code: 19100265 C31 I | Serious | 1 | 3 | $1,875 | $938 | May 13, 2002 | - | - |
| 02001 | 1910.265 Sawmills OSHA citation code: 19100265 C31 I | Other | 2 | 3 | $0 | $0 | May 2, 2002 | - | - |
Mar 21, 2002#304400633Mar 21, 2002Unprogrammed Related (G) · Partial scope, Safety#304400633$00 viol.0 violations$0 in penalties
Inspection #304400633
Dates
- Opened
- Mar 21, 2002
- Closing Conference Date
- Apr 11, 2002
- Closed
- Apr 15, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 185
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 500 12 Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
Unprogrammed Related Inspection: This inspection record is categorized as an unprogrammed related inspection in the DOL OSHA enforcement data. The public DOL category label is preserved here without adding extra interpretation beyond the government label.
Aug 1, 2001#304397714Aug 1, 2001Planned (H) · Complete scope, Health#304397714$20,00023 viol.23 violations$20,000 in penalties
Inspection #304397714
Dates
- Opened
- Aug 1, 2001
- Closing Conference Date
- Oct 26, 2001
- Closed
- Oct 17, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 150
Violations and Penalties
- Total Violations
- 23
- Violation Types
- 20 serious, 3 other-than-serious
- Initial Penalties
- $40,000
- Penalties on Record
- $20,000
- Site Address
- 500 12 Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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.
Chemical Exposure Sampling6 substances sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| 2-Butoxyethanol | 4 | 0 - 0.0521879 | ppm |
| Ammonia | 12 | 0.69 - 10 | ppm |
| Formaldehyde | 36 | 0 - 37.4796867 | ppm |
| Gravimetric DeterminationQC | 6 | 0.0409 - 4.8795 | mg/m³ |
| Particulates not otherwise regulated (Respirable Fraction) | 1 | 0.6607 | mg/m³ |
| Particulates not otherwise regulated (Total Dust) | 3 | 2.0041 - 4.8795 | mg/m³ |
| Sample WeightQC | 6 | 0.033 - 4.05 | mg |
| Wood Dust, all soft and hard woods, except Western Red Cedar | 2 | 0.0409 - 0.1092 | mg/m³ |
Violations
Violation list (5 of 23 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 5A0001 General Duty Clause, Section 5(a)(1) | Serious | 1 | 6 | $5,000 | $2,500 | Dec 12, 2001 | - | - |
| 01002 | 1910.23 Ladders OSHA citation code: 19100023 C01 | Serious | 3 | 2 | $2,500 | $1,250 | Nov 15, 2001 | - | - |
| 01003A | 1910.134 Respiratory Protection OSHA citation code: 19100134 D03 I | Serious | 1 | 6 | $5,000 | $2,500 | Jan 11, 2002 | - | - |
| 01003B | 1910.134 Respiratory Protection OSHA citation code: 19100134 E01 | Serious | 5 | 5 | $0 | $0 | Jan 11, 2002 | - | - |
| 01003C | 1910.134 Respiratory Protection OSHA citation code: 19100134 F02 | Serious | 4 | 4 | $0 | $0 | Jan 11, 2002 | - | - |
Showing the 5 violations listed first by citation identifier. This inspection has 23 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Jun 5, 2001#304396658Jun 5, 2001Planned (H) · Complete scope, Health#304396658$18,50018 viol.18 violations$18,500 in penalties
Inspection #304396658
Dates
- Opened
- Jun 5, 2001
- Closing Conference Date
- Jun 5, 2001
- Closed
- Apr 29, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 220
Violations and Penalties
- Total Violations
- 18
- Violation Types
- 14 serious, 4 other-than-serious
- Initial Penalties
- $42,000
- Penalties on Record
- $18,500
- Site Address
- 500 12th Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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.
Chemical Exposure Sampling17 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) | 8 | 0 | mg/m³ |
| Beryllium and Beryllium Compounds (as Be) | 8 | 0 | mg/m³ |
| Cadmium | 8 | 0 | mg/m³ |
| Chromium, Metal and Insoluble Salts | 2 | 0.0009794 - 0.0041915 | mg/m³ |
| Cobalt, Metal, Dust and Fume (as Co) | 7 | 0 - 0.019 | mg/m³ |
| Copper Fume (as Cu) | 8 | 0 - 0.0125309 | mg/m³ |
| Gravimetric DeterminationQC | 2 | 0.1202 - 0.3082 | mg/m³ |
| Iron Oxide Fume | 2 | 1.1755788 - 2.1034539 | mg/m³ |
| Lead, Inorganic (as Pb) | 8 | 0 | mg/m³ |
| Manganese Fume (as Mn) | 2 | 0.0546383 - 0.228018 | mg/m³ |
| Molybdenum (as Mo), Insoluble Compounds (Total Dust) | 2 | 0 - 0.0054745 | mg/m³ |
| Nickel, Metal and Insoluble compounds (as Ni) | 2 | 0.0013123 - 0.0262479 | mg/m³ |
| Sample WeightQC | 3 | 0 - 0.244 | mg |
| Silver, Metal and Soluble Compounds (as Ag) | 6 | 0 - 0.0050689 | mg/m³ |
| Tin, inorganic compounds (except oxides) (as Sn) | 6 | 0 | mg/m³ |
| Tungsten (as W) Insoluble Compounds | 5 | 0 - 0.25 | mg/m³ |
| Vanadium fume (as V2O5) | 2 | 0 | mg/m³ |
| Wood Dust, all soft and hard woods, except Western Red Cedar | 3 | 0 - 0.3082 | mg/m³ |
| Zinc Oxide Fume | 8 | 0 - 0.0098448 | mg/m³ |
Violations
Violation list (5 of 18 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.265 Sawmills OSHA citation code: 19100265 E04 IIC | Serious | 1 | 2 | $5,000 | $2,500 | Aug 17, 2001 | - | - |
| 01002 | 1910.265 Sawmills OSHA citation code: 19100265 C18 I | Serious | 2 | 3 | $5,000 | $0 | Aug 17, 2001 | - | - |
| 01003 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A03 II | Serious | 5 | 4 | $2,000 | $1,000 | Sep 15, 2001 | - | - |
| 01004A | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 D01 | Serious | 1 | 1 | $2,500 | $1,250 | Aug 26, 2001 | - | - |
| 01004B | 1910.133 Eye and Face Protection OSHA citation code: 19100133 A01 | Serious | 1 | 1 | $0 | $0 | Aug 17, 2001 | - | - |
Showing the 5 violations listed first by citation identifier. This inspection has 18 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Jun 5, 2001#304396641Jun 5, 2001Planned (H) · Complete scope, Health#304396641$2,5004 viol.4 violations$2,500 in penalties
Inspection #304396641
Dates
- Opened
- Jun 5, 2001
- Closing Conference Date
- Jul 23, 2001
- Closed
- Aug 16, 2001
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 186
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 1 serious, 3 other-than-serious
- Initial Penalties
- $5,000
- Penalties on Record
- $2,500
- Site Address
- 500 12th Ave. West, Columbia Falls, MT 59912
- Industry
- 321211 Hardwood Veneer and Plywood Manufacturing
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 | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 G08 IIB | Serious | 1 | 4 | $5,000 | $2,500 | Aug 25, 2001 | - | - |
| 02001 | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 I01 | Other | 1 | 5 | $0 | $0 | Jul 26, 2001 | - | - |
| 02002 | 1910.134 Respiratory Protection OSHA citation code: 19100134 K06 | Other | 1 | 1 | $0 | $0 | Jul 26, 2001 | - | - |
| 02003 | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 M02 IIE | Other | 1 | 9 | $0 | $0 | Aug 25, 2001 | - | - |
Mar 29, 2001#302899786Mar 29, 2001Planned (H) · Complete scope, Safety#302899786$2,4397 viol.7 violations$2,439 in penalties
Inspection #302899786
Dates
- Opened
- Mar 29, 2001
- Closing Conference Date
- Mar 29, 2001
- Closed
- Apr 30, 2001
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 186
Violations and Penalties
- Total Violations
- 7
- Violation Types
- 4 serious, 3 other-than-serious
- Initial Penalties
- $4,875
- Penalties on Record
- $2,439
- Site Address
- 500 12th Ave. West, Columbia Falls, MT 59912
- Industry
- 321211 Hardwood Veneer and Plywood Manufacturing
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 7 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.23 Ladders OSHA citation code: 19100023 C01 | Serious | 1 | 1 | $1,625 | $813 | Apr 28, 2001 | - | - |
| 01002 | 1910.169 Air Receivers OSHA citation code: 19100169 B03 I | Serious | 1 | 5 | $1,300 | $650 | Apr 28, 2001 | - | - |
| 01003 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 1 | 4 | $975 | $488 | Apr 28, 2001 | - | - |
| 01004 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 D01 | Serious | 1 | 5 | $975 | $488 | Apr 28, 2001 | - | - |
| 02001 | 1910.22 Walking-Working Surfaces - General Requirements OSHA citation code: 19100022 D01 | Other | 1 | 2 | $0 | $0 | Apr 28, 2001 | - | - |
Showing the 5 violations listed first by citation identifier. This inspection has 7 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Mar 28, 2001#302899778Mar 28, 2001Planned (H) · Complete scope, Safety#302899778$2,2766 viol.6 violations$2,276 in penalties
Inspection #302899778
Dates
- Opened
- Mar 28, 2001
- Closing Conference Date
- Mar 28, 2001
- Closed
- Jun 7, 2004
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 145
Violations and Penalties
- Total Violations
- 6
- Violation Types
- 3 serious, 3 other-than-serious
- Initial Penalties
- $4,550
- Penalties on Record
- $2,276
- Site Address
- 500 12 Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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 6 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.23 Ladders OSHA citation code: 19100023 C01 | Serious | 2 | 6 | $1,625 | $813 | Apr 29, 2001 | - | - |
| 01002 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 2 | 5 | $1,300 | $650 | May 14, 2001 | - | - |
| 01003 | 1926.153 Liquefied Petroleum Gas (LP-Gas) OSHA citation code: 19260153 O | Serious | 1 | 1 | $1,625 | $813 | Apr 16, 2001 | - | - |
| 02001 | 1910.37 Maintenance, Safeguards, and Operational Features for Exit Routes OSHA citation code: 19100037 Q01 | Other | 1 | 6 | $0 | $0 | Apr 16, 2001 | - | - |
| 02002 | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C04 II | Other | 1 | 4 | $0 | $0 | May 14, 2001 | - | - |
Showing the 5 violations listed first by citation identifier. This inspection has 6 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Failure to Abate Penalties1 citation, $31,000 in FTA penalties on record
OSHA's enforcement record shows Failure to Abate (FTA) activity recorded against 1 citation issued in this inspection. An FTA penalty is assessed during a follow-up inspection when OSHA's records indicate a previously cited hazard was not corrected by the abatement date. Each row below shows the FTA fields published on the original citation record: the follow-up inspection number, the FTA issuance date, the FTA penalty amount, and any FTA contest or final order date on record.
| Citation | FTA Inspection | FTA Issuance | FTA Penalty | FTA Contest | FTA Final Order |
|---|---|---|---|---|---|
| 02002 | #304404106 | Dec 19, 2002 | $31,000 | Jan 9, 2003 | Mar 16, 2004 |
Mar 27, 2001#302899752Mar 27, 2001Planned (H) · Complete scope, Safety#302899752$2,9278 viol.8 violations$2,927 in penalties
Inspection #302899752
Dates
- Opened
- Mar 27, 2001
- Closing Conference Date
- Mar 27, 2001
- Closed
- May 22, 2001
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 140
Violations and Penalties
- Total Violations
- 8
- Violation Types
- 5 serious, 3 other-than-serious
- Initial Penalties
- $5,850
- Penalties on Record
- $2,927
- Site Address
- 500 12th Ave. West, Columbia Falls, MT 59912
- Industry
- 321219 Reconstituted Wood Product Manufacturing
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 8 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.24 Step Bolts and Manhole Steps OSHA citation code: 19100024 H | Serious | 1 | 2 | $975 | $488 | May 14, 2001 | - | - |
| 01002A | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 D01 | Serious | 1 | 1 | $1,625 | $813 | Apr 16, 2001 | - | - |
| 01002B | 1910.133 Eye and Face Protection OSHA citation code: 19100133 A01 | Serious | 1 | 1 | $0 | $0 | Apr 16, 2001 | - | - |
| 01003 | 1910.265 Sawmills OSHA citation code: 19100265 C04 IV | Serious | 2 | 2 | $1,625 | $813 | May 14, 2001 | - | - |
| 01004 | 1910.265 Sawmills OSHA citation code: 19100265 F03 IIA | Serious | 1 | 1 | $1,625 | $813 | May 14, 2001 | - | - |
Showing the 5 violations listed first by citation identifier. This inspection has 8 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).
Source: U.S. Department of Labor OSHA enforcement data, violations table fields fta_insp_nr, fta_issuance_date, fta_penalty, fta_contest_date, fta_final_order_date. The FTA follow-up inspection is linked via fta_insp_nr to the inspection activity number (exact government key). When the follow-up inspection is not currently on record in SafetyRecord, the inspection number is shown without a link.
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.
11 inspections, 1999 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.
Standards cited
Chemical exposure sampling
Sample results are listed in the record of each inspection that collected them.
Industry comparison
Wood Product Manufacturing, 19,564 employers with OSHA inspections. Arithmetic from DOL records.