{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.ai-analytics.org/api/v1/msha/violations/check?name=Dunstone%20Rock%20Quarry","name":"Dunstone Rock Quarry","_source":{"data_provider":"AI Analytics","data_provider_url":"https://api.ai-analytics.org","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp","generated_at":"2026-09-25T12:42:29.968Z"},"summary":{"total_violations":44,"significant_and_substantial":5,"proposed_penalty_usd":5773,"amount_paid_usd":2282},"top_violated_rules":[{"part_section":"50.30(a)","n":13},{"part_section":"56.14132(a)","n":4},{"part_section":"56.14107(a)","n":4},{"part_section":"56.9300(a)","n":1},{"part_section":"56.4402","n":1},{"part_section":"56.4201(a)(2)","n":1},{"part_section":"56.23002(a)","n":1},{"part_section":"56.18020","n":1},{"part_section":"56.18010","n":1},{"part_section":"56.18002(b)","n":1}],"recent_violations":[{"violation_no":"8609869","issue_date":"12/13/2011","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.14132(a)","negligence":"ModNegligence","proposed_penalty":362,"canonical_url":"https://api.ai-analytics.org/mine-violation/8609869"},{"violation_no":"8568555","issue_date":"11/17/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"50.30(a)","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8568555"},{"violation_no":"6345497","issue_date":"10/29/2013","mine_id":"0405372","controller_name":"Joyce S.  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.14107(a)","negligence":"LowNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/6345497"},{"violation_no":"9507640","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.4402","negligence":"ModNegligence","proposed_penalty":133,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507640"},{"violation_no":"9507641","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"Y","part_section":"56.14105","negligence":"ModNegligence","proposed_penalty":321,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507641"},{"violation_no":"9507642","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.14132(b)(1)(i)","negligence":"ModNegligence","proposed_penalty":133,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507642"},{"violation_no":"9507643","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"Y","part_section":"56.14101(a)(3)","negligence":"ModNegligence","proposed_penalty":321,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507643"},{"violation_no":"9507644","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.14132(b)(2)","negligence":"ModNegligence","proposed_penalty":133,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507644"},{"violation_no":"9507645","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"Y","part_section":"56.14107(a)","negligence":"ModNegligence","proposed_penalty":144,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507645"},{"violation_no":"9507646","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"Y","part_section":"56.14107(a)","negligence":"ModNegligence","proposed_penalty":144,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507646"},{"violation_no":"9507647","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.14207","negligence":"ModNegligence","proposed_penalty":133,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507647"},{"violation_no":"9507648","issue_date":"10/12/2022","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"50.30(a)","negligence":"LowNegligence","proposed_penalty":133,"canonical_url":"https://api.ai-analytics.org/mine-violation/9507648"},{"violation_no":"5106059","issue_date":"10/09/2025","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"50.30(a)","negligence":"LowNegligence","proposed_penalty":151,"canonical_url":"https://api.ai-analytics.org/mine-violation/5106059"},{"violation_no":"5106060","issue_date":"10/09/2025","mine_id":"0405372","controller_name":"Robert J  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.23002(a)","negligence":"LowNegligence","proposed_penalty":151,"canonical_url":"https://api.ai-analytics.org/mine-violation/5106060"},{"violation_no":"8562047","issue_date":"08/27/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"41.12","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562047"},{"violation_no":"8562048","issue_date":"08/27/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"47.51","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562048"},{"violation_no":"8562037","issue_date":"08/24/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.4201(a)(2)","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562037"},{"violation_no":"8562038","issue_date":"08/24/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"56.12008","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562038"},{"violation_no":"8562039","issue_date":"08/24/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"46.6(a)","negligence":"ModNegligence","proposed_penalty":112,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562039"},{"violation_no":"8562040","issue_date":"08/24/2010","mine_id":"0405372","controller_name":"Robert G  Hammett","violator_name":"Dunstone Rock Quarry","sig_sub":"N","part_section":"46.3(a)","negligence":"ModNegligence","proposed_penalty":100,"canonical_url":"https://api.ai-analytics.org/mine-violation/8562040"}]}