Mathewson Pit Metal/Non-Metal
The Philip H Mathewson Co Inc
· Surface
Controlled by
Philip H Mathewson
PETERBOROUGH,
Hillsborough County,
NH
·
Active
MSHA Mine ID: 2700310
Mathewson Pit has $3K in proposed MSHA penalties and $453 outstanding across 0 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Mathewson Pit.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2001
21
citations
3
significant & substantial
$2,728
proposed penalties
$2,275
paid to date
83% of proposed penalties paid to date, a $453 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
14
inspections on record
163
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 163 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Mathewson Pit has $3K in proposed MSHA penalties and $453 outstanding across 0 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$3K
proposed penalties
$3K
current assessed
$2K
paid to date
$453
outstanding
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-10.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 590 | 0 | 0 | 0.0 |
| 2025 Q3 | 625 | 4 | 0 | 6400.0 |
| 2025 Q2 | 618 | 0 | 0 | 0.0 |
| 2025 Q1 | 318 | 0 | 0 | 0.0 |
| 2024 Q4 | 502 | 0 | 0 | 0.0 |
| 2024 Q3 | 532 | 0 | 0 | 0.0 |
| 2024 Q2 | 510 | 0 | 0 | 0.0 |
| 2024 Q1 | 424 | 9 | 1 | 21226.4 |
Show 22 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2005 Q2 | 750 | 0 | 0 | 0.0 |
| 2005 Q1 | 612 | 0 | 0 | 0.0 |
| 2004 Q4 | 698 | 0 | 0 | 0.0 |
| 2004 Q3 | 676 | 0 | 0 | 0.0 |
| 2004 Q2 | 554 | 0 | 0 | 0.0 |
| 2004 Q1 | 447 | 0 | 0 | 0.0 |
| 2003 Q4 | 546 | 0 | 0 | 0.0 |
| 2003 Q3 | 530 | 0 | 0 | 0.0 |
| 2003 Q2 | 562 | 0 | 0 | 0.0 |
| 2003 Q1 | 454 | 1 | 0 | 2202.6 |
| 2002 Q4 | 446 | 3 | 2 | 6726.5 |
| 2002 Q3 | 479 | 0 | 0 | 0.0 |
| 2002 Q2 | 356 | 0 | 0 | 0.0 |
| 2002 Q1 | 282 | 0 | 0 | 0.0 |
| 2001 Q4 | 318 | 1 | 0 | 3144.7 |
| 2001 Q3 | 461 | 0 | 0 | 0.0 |
| 2001 Q2 | 550 | 0 | 0 | 0.0 |
| 2001 Q1 | 540 | 0 | 0 | 0.0 |
| 2000 Q4 | 496 | 0 | 0 | 0.0 |
| 2000 Q3 | 624 | 0 | 0 | 0.0 |
| 2000 Q2 | 539 | 0 | 0 | 0.0 |
| 2000 Q1 | 551 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Mathewson Pit
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.