Data / Mines / New Hampshire / Portable Plant #1
Portable Plant #1: 6 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Portable Plant #1 is an intermittent construction sand and gravel surface mine in Belknap County, New Hampshire, operated by Ambrose Brothers Inc with 2 employees on MSHA's record (mine ID 2700334). Since January 1, 2022 MSHA inspectors issued 6 citations and orders there with $856 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Portable Plant #1 (MSHA mine ID 2700334) in Belknap County, New Hampshire: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2700334
- Status
- Intermittent since October 5, 1998
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Belknap County, New Hampshire
- Nearest town
- Meredith
- Operator
- Ambrose Brothers Inc
- Employees
- 2
- MSHA field office
- Portsmouth NH Field Office
- Citations and orders since January 1, 2022
- 6
- Significant and substantial
- 2 (33.3%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $856
- Amount paid so far
- $856
- Inspections
- 5
- Inspector hours on site
- 25
- Citations per inspection
- 1.20 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- July 25, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 1 | 0 | $133 | 0 |
| 2023 | 4 | 2 | $572 | 0 |
| 2026 | 1 | 0 | $151 | 0 |
Standards cited most at Portable Plant #1
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14108 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 1 |
Other open mines in Belknap County, New Hampshire
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Mountain Made Materials | Mountain Made Materials, LLC | Belknap County, NH | Construction sand and gravel | 2 | 20 |
| Portable #1 | Custom Crushing Company, LLC | Belknap County, NH | Crushed, broken granite | 2 | 14 |
| Nutter Enterprises Inc | Nutter Enterprises Inc | Belknap County, NH | Construction sand and gravel | 7 | 10 |
| Portable Plant #2 | Mountain Made Materials, LLC | Belknap County, NH | Construction sand and gravel | 2 | 9 |
| Alton Pit | Green Oak Realty Development LLC | Belknap County, NH | Construction sand and gravel | 2 | 6 |
| Belmont Sand & Gravel (C627) | Pike Industries | Belknap County, NH | Construction sand and gravel | 7 | 2 |
| Portable Crusher | Nutter Enterprises Inc | Belknap County, NH | Construction sand and gravel | 3 | 2 |
| Metso Portable | Hartmann Enterprises | Belknap County, NH | Construction sand and gravel | 2 | 2 |
| Portable Crusher #1 | Marcou Construction Company Inc | Belknap County, NH | Crushed, broken sandstone | 5 | 1 |
| Portable Plant # 2 | Jeremy Hiltz Excavating Inc | Belknap County, NH | Construction sand and gravel | 4 | 1 |
| Benevento Aggregates Belmont Pit | Benevento Aggregates LLC | Belknap County, NH | Construction sand and gravel | 3 | 0 |
| Goodwin-Barsby | K & B Crushing Equipment, LLC | Belknap County, NH | Construction sand and gravel | 1 | 0 |
| Portable 01.642 | Pike Industries | Belknap County, NH | Crushed, broken stone | 1 | 0 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.