BAT Work Group
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Transcript of BAT Work Group
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BAT Work Group
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BAT Work Group Goals
• Develop a procedure for identifying technologies eligible for funding
• Propose policies and regulation necessary to ensure long-term operation of BAT
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Management ofBAT - OSDS
• Design
• Installation
• Operation
• Maintenance
• Monitoring
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BAT - OSDS
• Require O & M– Moving Parts– Pumps – Electricity– Need to be pumped– Cycles may need to be adjusted– Sampling may be necessary
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EPA National Guidelines for Management of Onsite Systems
Maryland is looking to EPA’s Voluntary Guidelines for the management of advanced technology or BAT OSDS.
http://www.epa.gov/owm/septic/pubs/septic_guidelines.pdf
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EPA National Guidelines for Management of Onsite Systems
• EPA’s 5 Management Models– Model 1: Homeowner Awareness– Model 2: Maintenance Contracts– Model 3: Operating Permits– Model 4: Responsible Management Entity
(RME)– Model 5: RME Ownership
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EPA Model 1 – Homeowner Awareness
• Low tech systems
• Systems properly sited, designed and constructed
• Owner education
• Inventory
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EPA Model 2 - Maintenance Contracts
• More complex options
• Mechanical components
• Requires service contracts for maintenance
• Service contract tracking system
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EPA Model 3 – Operating Permits
• Establishes system performance and monitoring requirements
• Allows engineered treatment designs but may have prescriptive discharge requirements
• Renewable upon review
• Compliance monitoring
• Minimum for large systems
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EPA Model 4 – RME O & M
• Professional O & M services
• RME is the controlling authority and permitee
• Sanitary districts possible
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EPA Model 5 – RME Ownership
• Areas in need of most protection
• Most complicated of technologies
• Systems owned by the RME
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COMAR
• Does not address BAT N removal
• Addresses non-conventional systems
• Addresses aerobic treatment units
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Non-Conventional OSDS
• "Non-conventional on-site sewage disposal systems" are experimental systems and innovative technologies not currently described in these regulations, that are undergoing evaluation by the Department of the Environment and the Approving Authority.
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Non-Conventional OSDS
• E. Non-conventional on-site sewage disposal systems which require specialized operation or extensive maintenance shall also require a satisfactory agreement among local health, State Health, and the systems' owners to assure proper operation and adequate maintenance. For example, a service contract may be required.
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Non-Conventional OSDS
• H. Non-conventional on-site sewage disposal systems may not be considered as acceptable on-site sewage disposal systems with regard to the subdivision of land pursuant to COMAR 26.04.03.
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Aerobic Treatment Units
• H. Aerobic units may be used instead of septic tanks and shall be designed using maximum daily flows pursuant to § E and F of this regulation. A reduction in lot size or absorption area requirements is not allowed with their use. All aerobic units shall be made of materials and constructed in a manner acceptable to the Approving Authority.
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Identifying Grant Eligible BAT
FOR NUTRIENT REDUCTION OSDS
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VERIFICATION vs. CERTIFICATION
VERIFICATION – Evaluate and verify manufacturers performance claims through strict written protocol.
CERTIFICATION - Evaluate system against established performance standards.
Pass / Fail
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Protocol / Standards
• Verification – NSF, EPA/ETV - Protocol For The Verification of Residential Wastewater Treatment Technologies For Nutrient Reduction, (November 27, 2000).
• CERTIFICATION – ANSI/NSF STANDARD 40: RESIDENTIAL WASTEWATER TREATMENT SYSTEMS
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National Procedures
• NSF-EPA/ETV VERIFICATION PROGRAM– 6 technologies evaluated
• NOWRA– DRAFT MODEL PERFORMANCE
CODE
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Multi- StateProcedure
NEW ENGLAND INTERSTATE WATER POLLUTION CONTROL COMMISSION
(NEIWPCC)• EVALUATION OF TECHNOLOGIES ON REGIONAL
BASIS (1996 MOU) • ASSIST STATE REGULATORS BY ISSUANCE OF
ADVISORY OPINION
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State Programs
• Massachusetts
• Pennsylvania
• Delaware
• New Jersey
• Oregon
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Massachusetts
Four Category - Approval Process• General, Provisional, Piloting, Remedial• Number and percentage of successful systems
advance to next Category • Piloting - <15 facilities (sites) for each system• Provisional – Successful Piloting = 75% systems
satisfactory performance 1 year.• General – Performance evaluation 1st 3 years of 1st
50 systems before Provisional Status
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Massachusetts
• Regulations may consider past performance of systems in other comparable States For Piloting and Provisional
• RSF standard for Nitrogen Reduction – 90% of installed systems at a level equivalent to RSF
• Regulations – 40% TN in influent shall be removed.
• 15? systems moving through approval process
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Pennsylvania
• “Experimental On lot Wastewater Technology Verification Program” – Policy, July ‘04
• NSF initially selected as Verification Organization
• Systems tested at NSF Approved Center
• Based on Test Center Results – Move to Field Testing @ 12 Representative Sites - NSF Verifies
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Delaware
• Draft Regulations currently out for comment• Nutrient Reduction Inland Bays • TMDL Driven• Use of NSF,EPA/ETV Nutrient Reduction
Systems• 20 mg/l TN Residential, 5 mg/l TN Community
OSDS end of pipe• Sampling Program with Compliance
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New Jersey
• Part of Six State Reciprocal Agreement MOU 1996– Protocol For Verification started 1999 “Work in Progress”
• Pinelands Commission Sensitive Area
Nutrient Reduction OSDS
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Oregon
• LaPine National Demonstration Project
• Source Drinking Water and Surface Water Protection – Sensitive Area
• As of April ’04 - 40 Innovative Systems, 12 Types Many Nutrient Reduction
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Maryland
DRAFT BAT Verification Program
Categories
• Systems Certified by 3rd Party
• Systems Verified by 3rd Party Independent Organization
• Systems Not Certified or Verified
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Maryland
DRAFT BAT Verification ProgramNecessary Components
Acceptable Standardized Certification / Verification Protocol
• On Lot Component to Allow Evaluation Under Varied Field Conditions And Appropriate Management Level
• Adequate Number of Systems Installed With Minimum Number of Samples
• Satisfactory Percent TN Reduction Based Appropriate Statistical Method
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BAT Issues
• Voluntary vs. mandatory management
• Site built vs. third party verified BAT
• Sampling vs. observational monitoring
• Create a level playing field for reimbursable technologies