Basin Plan Amendment Basin Plan Amendment for for Onsite - PowerPoint PPT Presentation

Basin Plan Amendment Basin Plan Amendment for for Onsite Implementation Program Onsite Implementation Program (plan for regulating onsite systems) (plan for regulating onsite systems) May 5, 2011 May 5, 2011 Sorrel Marks Sorrel Marks Central Coast Water Board Staff Report Central Coast Water Board Staff Report 1 1

Proper Septic System Function Leachfield Septic Tank Groundwater 2 2

Water Code Requirements Water Code Requirements � Water Code requires authorization for discharge Water Code requires authorization for discharge � � Onsite system => discharge waste Onsite system => discharge waste � � Authorization in WDR or Waiver of WDR Authorization in WDR or Waiver of WDR � � Waiver implemented since 1983 Waiver implemented since 1983 � � Waivers expired in 2004 Waivers expired in 2004 � � Individual WDR cumbersome & expensive Individual WDR cumbersome & expensive � � Does not comply with Water Code requirements Does not comply with Water Code requirements � 3 3

Basin Plan Onsite Criteria Basin Plan Onsite Criteria � Adopted in 1983 Adopted in 1983 � � Siting Siting, design, construction, maintenance & mgmt. , design, construction, maintenance & mgmt. � � Low maintenance & low tech systems Low maintenance & low tech systems � � Effective low cost treatment Effective low cost treatment � � Long Long- -term water quality protection term water quality protection � � Applied in local permitting Applied in local permitting � 4 4

2008 Criteria Update 2008 Criteria Update � Update 25 Update 25- -year old Basin Plan criteria year old Basin Plan criteria � � Added and clarified definitions Added and clarified definitions � � Onsite management plans required & described Onsite management plans required & described � � Additional treatment for very fast percolating soils Additional treatment for very fast percolating soils � � Certified professional design on slopes >20% Certified professional design on slopes >20% � � Prohibited discharge in 25 Prohibited discharge in 25- -year flood plain year flood plain � � Fill to be designed as disposal area Fill to be designed as disposal area � � Brine disposal must be consistent with management plan Brine disposal must be consistent with management plan � � Retrofit of properly Retrofit of properly- -functioning systems not required functioning systems not required � � Board adopted criteria, legal issues with waiver Board adopted criteria, legal issues with waiver � 5 5

2009 Implementation Update 2009 Implementation Update � Renew waiver that expired in 2004 Renew waiver that expired in 2004 � � Incorporate waiver into Basin Plan Incorporate waiver into Basin Plan � � Consistent Basin Plan compliance Consistent Basin Plan compliance � � Guidance for Onsite Management Plans Guidance for Onsite Management Plans � � Local agencies oversight most effective Local agencies oversight most effective � � address community address community- -specific conditions specific conditions � � most already implementing oversight most already implementing oversight � � Permit streamlining benefits stakeholders Permit streamlining benefits stakeholders � � Efficient compliance with state law Efficient compliance with state law � � Minimize time and cost to applicant Minimize time and cost to applicant � � Proactive and long Proactive and long- -term water quality protection term water quality protection � 6 6

2011 Revisions (this action) 2011 Revisions (this action) � Purpose Purpose – – update Basin Plan criteria and waiver update Basin Plan criteria and waiver � � Waiver for existing onsite systems Waiver for existing onsite systems � � Waiver for new systems that meet Basin Plan criteria or OMP Waiver for new systems that meet Basin Plan criteria or OMP � � Revisions described in Staff Report (pages 4 Revisions described in Staff Report (pages 4- -6) 6) � � Definitions expanded & background added Definitions expanded & background added � � Onsite Management Plan detail added Onsite Management Plan detail added � � Requirements consolidated from various sections Requirements consolidated from various sections � � Board approval of Onsite Management Plans Board approval of Onsite Management Plans � � Reorganized Reorganized – – implementation brought forward implementation brought forward � � Clarify conditions of waiver Clarify conditions of waiver � � Consistent terminology Consistent terminology � � Consistent with State Board staff recommendations Consistent with State Board staff recommendations � 7 7

Issues of Public Concern Issues of Public Concern � Cost to local agency of onsite mgmt plan Cost to local agency of onsite mgmt plan � � Activities already implemented by local agencies Activities already implemented by local agencies � � Utilize available information Utilize available information � � Prevents cost of correcting problems Prevents cost of correcting problems � � OMP condition of waiver OMP condition of waiver � � Limits secondary units on less than two acres Limits secondary units on less than two acres � � 1983 requirement clarified 1983 requirement clarified � � Alternative criteria in onsite management plans Alternative criteria in onsite management plans � � Work with local agencies to develop program Work with local agencies to develop program � � Local agency outreach meetings Local agency outreach meetings � � Scoping workshops & Water Board meetings Scoping workshops & Water Board meetings � � Website information page Website information page � � Draft documents circulated for public comment Draft documents circulated for public comment � 8 8

Conditions of Waiver Conditions of Waiver Without Local Onsite Mgmt Plan With MOU & Onsite Mgmt Plan Without Local Onsite Mgmt Plan With MOU & Onsite Mgmt Plan � Submittal of application Submittal of application � Application waived Application waived � � � $560 fee (set by State Board) $560 fee (set by State Board) � No application fee No application fee � � � Application documents Application documents � System consistent with local System consistent with local � � consistency with Basin Plan onsite management plan consistency with Basin Plan onsite management plan � Staff review & enrollment Staff review & enrollment � Local permitting procedures Local permitting procedures � � � Local permitting procedures Local permitting procedures � 9 9

Observed Failures in the San Lorenzo Watershed Observed Failures in the San Lorenzo Watershed Reduction after implementing onsite management plan Reduction after implementing onsite management plan San Lorenzo Watershed 20% 18% 16% 14% Percent of Parcels Failing 12% 10% 8% 6% 4% 2% 0% 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Year 10 10 County Inspections Pumper Reports

Work Outstanding Work Outstanding � Submit Basin Plan Amendment to State Water Submit Basin Plan Amendment to State Water � Board and OAL for review and approval Board and OAL for review and approval � Develop Develop MOUs MOUs with local permitting agencies with local permitting agencies � � Assist local agencies with onsite mgmt plans Assist local agencies with onsite mgmt plans � � New onsite systems New onsite systems - - c continue status quo for ontinue status quo for � limited time (1 year) while developing MOUs MOUs and and limited time (1 year) while developing onsite management plans onsite management plans 11 11

Corrections Corrections p.4 editorial correction p.4 editorial correction p.8 waiver of ROWD and WDR and WDR p.8 waiver of ROWD “ For an onsite wastewater system to be eligible for a conditional “ For an onsite wastewater system to be eligible for a conditional waiver waiver of of Report of Waste Discharge and Waste Discharge Requirements and Waste Discharge Requirements, local , local Report of Waste Discharge governing jurisdictions must develop and implement programs to e governing jurisdictions must develop and implement programs to ensure nsure conformance with this Basin Plan (as found in the following sections) (as found in the following sections) and and conformance with this Basin Plan local regulations local regulations and enter into memorandum of understanding with the and enter into memorandum of understanding with the Central Coast Water Board. .” ” Central Coast Water Board p.9 Local management plan recommended (required as p.9 Local management plan recommended (required as condition of waiver) condition of waiver) “ 5. “ 5. Onsite Wastewater Management Plans Onsite Wastewater Management Plans should should be prepared and be prepared and implemented for urbanizing and high density areas served by onsite te implemented for urbanizing and high density areas served by onsi wastewater systems.” ” wastewater systems. 12 12