ACTIVE / CONTROLLER PORTFOLIO

Riverstone Group

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER IDM00233

MINE PORTFOLIO

27 of 27 mines and facilities

2025-01-01 – 2026-10-17. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
ALLIED STONE PLANT #301100135 · ActiveRock Island, ILSurface · MSHA: Crushed, Broken Limestone NEC——3151.5
Antire Quarry (CS-72)2300026 · ActiveJefferson, MOSurface · MSHA: Crushed, Broken Limestone NEC——10172.3
ANTONIA (CS56)2301957 · ActiveJefferson, MOSurface · MSHA: Crushed, Broken Limestone NEC——3041.5
Butler Hill Granite (CS58)2302431 · ActiveSt Francois, MOSurface · MSHA: Dimension Granite——1235.8
Central Stone Co (CS-75)1103083 · ActiveHancock, ILSurface · MSHA: Crushed, Broken Limestone NEC——1130.3
Central Stone Portable Pl#1 (CS48)2301102 · ActiveMarion, MOSurface · MSHA: Crushed, Broken Stone NEC——1224.3
Central Stone Port Pl #2 (CS49)2301065 · ActiveRalls, MOSurface · MSHA: Dimension Limestone——1036.0
CLEVELAND QUARRY PLANT #311100131 · ActiveHenry, ILSurface · MSHA: Crushed, Broken Limestone NEC——3158.8
EDINA PLANT (KC01)2300125 · ActiveKnox, MOSurface · MSHA: Crushed, Broken Limestone NEC——2028.0
Florence Plant (CS33)1100132 · ActivePike, ILSurface · MSHA: Crushed, Broken Limestone NEC——1128.3
Fort Bellefontaine (CS31)2300745 · ActiveSt Louis, MOSurface · MSHA: Crushed, Broken Limestone NEC——13897.5
House Springs Quarry (CS-73)2300106 · ActiveJefferson, MOSurface · MSHA: Crushed, Broken Limestone NEC——3025.5
JEFFERSON BARRACKS (CS-71)2300027 · ActiveSt Louis, MOSurface · MSHA: Crushed, Broken Limestone NEC——5260.5
LaGrange Sand & Gravel Pit (CS61)2302494 · ActiveLewis, MOSurface · MSHA: Sand, Common——3140.0
Leclaire Portable Crusher #11301999 · ActiveScott, IASurface · MSHA: Crushed, Broken Limestone NEC——1035.3
Leclaire Portable Crusher #21302224 · ActiveScott, IASurface · MSHA: Crushed, Broken Limestone NEC——7241.3
Midway Stone #451100134 · ActiveRock Island, ILSurface · MSHA: Crushed, Broken Limestone NEC——3046.8
Moscow Mills Plant CS572302194 · ActiveLincoln, MOSurface · MSHA: Crushed, Broken Limestone NEC——5140.3
Otter Creek Sand & Gravel (CS-68)1101131 · ActiveFulton, ILSurface · MSHA: Construction Sand and Gravel——0014.0
Portable Plant #3 (CS50)1100124 · ActiveAdams, ILSurface · MSHA: Crushed, Broken Limestone NEC——1121.0
Potosi Plant #(CS66)2302423 · ActiveWashington, MOSurface · MSHA: Dimension Limestone——6061.0
RIVERSTONE PERMANENT WASH PLANT1300094 · ActiveScott, IASurface · MSHA: Crushed, Broken Limestone NEC——1112.0
ST Francois Quarry (CS54)2301628 · ActiveSt Francois, MOSurface · MSHA: Crushed, Broken Limestone NEC——6142.8
Trautman Quarry (CS-74)2300539 · ActiveJefferson, MOSurface · MSHA: Crushed, Broken Limestone NEC——2034.0
Troy Grove Stone Quarry (MC46)1102864 · ActiveLa Salle, ILSurface · MSHA: Crushed, Broken Limestone NEC——6140.0
VALLEY PLANT #71100136 · ActiveWarren, ILSurface · MSHA: Crushed, Broken Limestone NEC——2036.0
Vermilion Plant (MC47)1103208 · ActiveLa Salle, ILSurface · MSHA: Crushed, Broken Limestone NEC——19180.0

LOCATION

Portfolio map

27 of 27 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

109

8 significant & substantial (S&S)

  1. 2025 Q111
  2. 2025 Q212
  3. 2025 Q318
  4. 2025 Q431
  5. 2026 Q16
  6. 2026 Q214
  7. 2026 Q317
  8. 2026 Q4 *0

Accident records

28

1 records classified as fatality

  1. 2025 Q14
  2. 2025 Q23
  3. 2025 Q35
  4. 2025 Q42
  5. 2026 Q15
  6. 2026 Q25
  7. 2026 Q34
  8. 2026 Q4 *0

Proposed penalties · USD

17,381.00

102 of 109 violations with amounts

  1. 2025 Q12,938
  2. 2025 Q22,126
  3. 2025 Q32,732
  4. 2025 Q44,918
  5. 2026 Q1906
  6. 2026 Q22,100
  7. 2026 Q31,661
  8. 2026 Q4 *—

On-site inspection hours

1,134.25

118 inspections · 118 with hours

  1. 2025 Q180.75
  2. 2025 Q2166.75
  3. 2025 Q3177.00
  4. 2025 Q4252.75
  5. 2026 Q1144.00
  6. 2026 Q2146.25
  7. 2026 Q3166.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11122,938.00401180.8
2025-Q21202,126.003017166.8
2025-Q31802,732.005022177.0
2025-Q43144,918.002018252.8
2026-Q160906.005019144.0
2026-Q21412,100.005115146.3
2026-Q31711,661.004016166.8
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation9788927
    EDINA PLANT (KC01) · 2300125

    56.14207 · $151.00 proposed

  2. inspectionF03B8FB
    Portable Plant #3 (CS50) · 1100124

    Regular Safety and Health Inspection · 6.5 on-site hours

  3. inspectionF03861B
    House Springs Quarry (CS-73) · 2300106

    Regular Safety and Health Inspection · 3.0 on-site hours

  4. inspectionF01C039
    Butler Hill Granite (CS58) · 2302431

    Spot Inspection · 1.8 on-site hours

  5. violation5118914
    Midway Stone #45 · 1100134

    56.12008 · $151.00 proposed

  6. violation5042349
    ANTONIA (CS56) · 2301957

    56.14132(a) · $151.00 proposed

  7. inspectionF037BCB
    Midway Stone #45 · 1100134

    Regular Safety and Health Inspection · 13.3 on-site hours

  8. inspectionF03861A
    ANTONIA (CS56) · 2301957

    Regular Safety and Health Inspection · 13.0 on-site hours

  9. inspectionF03B8F7
    LaGrange Sand & Gravel Pit (CS61) · 2302494

    Regular Safety and Health Inspection · 10.5 on-site hours

  10. violation9788925
    LaGrange Sand & Gravel Pit (CS61) · 2302494

    56.20003(a) · $151.00 proposed

  11. violation9788924
    LaGrange Sand & Gravel Pit (CS61) · 2302494

    56.15020 · S&S · $288.00 proposed

  12. inspectionF03B8F4
    Central Stone Port Pl #2 (CS49) · 2301065

    Regular Safety and Health Inspection · 16.0 on-site hours

  13. inspectionF01C032
    ST Francois Quarry (CS54) · 2301628

    Regular Safety and Health Inspection · 9.5 on-site hours

  14. violation5040911
    ST Francois Quarry (CS54) · 2301628

    47.44(b) · $151.00 proposed

  15. violation5040910
    ST Francois Quarry (CS54) · 2301628

    56.12004 · $151.00 proposed

  16. violation5040909
    ST Francois Quarry (CS54) · 2301628

    56.14100(b) · $151.00 proposed

  17. accident220261170007
    Fort Bellefontaine (CS31) · 2300745

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee alleges back was strained while pulling oil cart out from under a haul truck.

  18. accident220261060021
    JEFFERSON BARRACKS (CS-71) · 2300027

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee alleges they were climbing down a ladder and lost balance and fell down last 3 steps on to their right knee.

  19. inspectionF01C02E
    Butler Hill Granite (CS58) · 2302431

    Regular Safety and Health Inspection · 7.0 on-site hours

  20. violation5118874
    CLEVELAND QUARRY PLANT #31 · 1100131

    56.4200(b)(2) · $151.00 proposed

  21. violation5040900
    Butler Hill Granite (CS58) · 2302431

    56.12028 · $151.00 proposed

  22. inspectionF037BC0
    CLEVELAND QUARRY PLANT #31 · 1100131

    Regular Safety and Health Inspection · 13.8 on-site hours

  23. accident220260910029
    Central Stone Portable Pl#1 (CS48) · 2301102

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee alleges while stepping back from master control center unit, they fell to the ground and strained shoulder.

  24. inspectionF037BBE
    Leclaire Portable Crusher #1 · 1301999

    Regular Safety and Health Inspection · 15.3 on-site hours

  25. violation5118872
    Leclaire Portable Crusher #1 · 1301999

    56.16001 · $151.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

4 linked operators.

Relationships reflect the selected mine status and current MSHA controller/operator fields.