HEFFRON MTLS-WOBURN has $55 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
3
Years on record
1986–1989
Latest incident
May 1989
Compliance record
MSHA citations since 2000
1
citations
0
significant & substantial
$55
proposed penalties
$55
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
6
inspections on record
52
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: 52 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
HEFFRON MTLS-WOBURN has $55 in proposed MSHA penalties and $0 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.
$55
proposed penalties
$55
current assessed
$55
paid to date
$0
outstanding
1 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2000-08-01.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
ⓘShares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2003
2
2002
4
2001
4
2000
4
Source: MSHA quarterly employment and production, updated weekly.
HEFFRON MTLS-WOBURN sits in Middlesex County, Massachusetts, where the Census mining category is 0.0% of county employment.
Local economic context
ⓘCounty figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Middlesex County, Massachusetts · Population 1,622,896
0.0%
Mining share of county employment
$126,779
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2003 Q4
1,279
0
0
0.0
2003 Q3
1,396
0
0
0.0
2003 Q2
1,378
0
0
0.0
2003 Q1
1,511
0
0
0.0
2002 Q4
1,773
0
0
0.0
2002 Q3
2,569
0
0
0.0
2002 Q2
2,479
0
0
0.0
2002 Q1
1,973
0
0
0.0
Show 8 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2001 Q4
2,195
0
0
0.0
2001 Q3
2,416
0
0
0.0
2001 Q2
2,042
0
0
0.0
2001 Q1
1,398
0
0
0.0
2000 Q4
2,160
0
0
0.0
2000 Q3
2,250
1
0
444.4
2000 Q2
2,249
0
0
0.0
2000 Q1
1,402
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
1989 · 1 incident
May 3, 1989MA · Metal/Non-Metaldrill operatorMACHINERY
DRILLER WAS SHARPENING BLADE BIT ON GRINDER. GRINDER. GRINDING WHEEL EXPOLODED, FRAGMENTS OF WHEEL STRUCK RIGHT HAND AND GROIN AREA. DRILLER STRUGGLED TO WALK APPROX. 30 FEET AND COLLAPSED. DR ILLER WAS NOT EMPLOYED BY CONTRACTOR BUT EMPLOYED BY SUBCONTRACTOR HIRED BY CONTRACTOR.
1988 · 1 incident
December 9, 1988MA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
LIFTING BATTERY CHARGER TO EUCLID CAB TRUCK PLATFORM TO CHARGE BATTERIES AND STRAINED BACK
1986 · 1 incident
November 29, 1986MA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON