In1970,Californialegislationwaspassedthatplacedtheprimaryresponsibilityofcontrollingair pollutionatthelocallevel.Followingthisaction,theSanLuisObispoCountyBoardofSupervisors formedthelocalAirPollutionControlDistrict(APCD)andbecametheAPCDBoard.In1995,the APCDBoardwasexpandedtoincluderepresentationfromallincorporatedcitiesthroughoutthe county.Today,theAPCDBoardconsistsof12members; fiveCountySupervisorsandonecity councilmemberfromeachofthesevenincorporatedcities.TheBoardisthedecision-making bodyfortheDistrictandisresponsibleforadoptingrules,settingpoliciesandprovidingdirection onimportantairqualityissuesimpactingthecounty.APCDBoardappointsanAirPollution ControlOfficer(APCO),whohasadministrativeresponsibilityforissuingpermitsandenforcingair quality rules. TheAPCDhasconductedin-depthstudiesofthePMdustpollutionexperiencedontheNipomo Mesa,andhasconcluded“thesourceoftheelevatedparticulatematter(PM)pollutiontobe windblowndustfromtheopensandareasoftheOceanoDunesStateVehicularRecreationArea (SVRA).” Consequently,theAPCDadoptedRule1001,whichestablishedarequirementthatthe StateParksOceanoDunesOHMVRDivisionlimitPMemissionsfromtheSVRAthataresignificantlyinexcessofthenaturalbackgroundemissionsfromthe OsoFlaconon-ridingarea.ThisrulewasdisputedbytheFriendsofTheOceanoDunesincourt,buttheauthorityoftheAPCDtoenforceRule1001airquality requirementswaseventuallyupheld.StateParksOHMVRDivisionhasacknowledgedthatisrequiredtocomplywithRule1001airqualityrequirement,but hasfailedtomakesignificantprogresstowardcompliance.Consequently,onJune12,2017theAPCOissuedaNoticeofViolationtotheOHMVRDivision’s Acting Deputy Director. This ultimately lead to an abatement hearing and a APCD Hearing Board approved Stimulated Order of Abatement (April 2018).TheBoardofSupervisor’swebsitestates“…BoardofSupervisorsservesastheCounty’slegislativebody,settingpoliciesandprioritiestobestservetheneeds ofthecommunity.”However,theCountyofSanLuisObispoisindirectlyacontributortothePMdustpollutionproblem.Studieshaveshownthatthepartof theSVRAknownastheLaGrandeTractisthelargestsourceofhighconcentrationPMemissions.ThislandislargelyownedbytheCounty.Originally,OHMVR Division’suseofthistractwasauthorizedbyawrittenOperatingAgreement(1983)County.ThisOperatingAgreementexpiredin20008andhasnotbeen formallyrenewedorreplaced.TheCoastalCommissionagreesthatcurrentlynoCountyapprovalexistsforStateParks’soperationontheportionoftheLa Grande Track owned by SLO County. TheCountyHealthCommissionexpressedconcernaboutthehealthrisksassociatedwiththePMdustpollutionemittedfromtheOceanoDunesSVRAvehicle activity in a May 15, 2017 letter to the Board of Supervisors. The Board of Supervisors has failed to address the substance of this concern.
This report describes a special air monitoring study conducted by the San Luis Obispo County APCD to better define the spatial distribution and neighborhood impacts of the windblown dust plume that originates from the Oceano Dunes during high northwest wind conditions.
Grand Jury report of finding that ODSRVA dune dust poses a health risk to Nipomo Mesa residents, along with recommendations for action if State Parks fails to mitigate.
The County staff report adopted by the Board of Supervisors in response to the above Grand Jury report, and forwarded to the presiding judge without change.