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Purpose and Background

Purpose and Background. The Cecil County Northeast Advanced Wastewater Treatment Plant (NEAWWTP) will need to be expanded to support anticipated growth associated with the APG – BRAC development

alec-wilson
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Purpose and Background

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  1. Purpose and Background • The Cecil County Northeast Advanced Wastewater Treatment Plant (NEAWWTP) will need to be expanded to support anticipated growth associated with the APG – BRAC development • The NEAWWTP permitted capacity is capped at 2.67 MGD at an average Total Nitrogen (TN) concentration of 3.0 mg/l, or approximately 24,500 pound TN annually • On April 26, 2008 MDE adopted the “Maryland Policy for Nutrient Cap Management and Trading in Maryland’s Chesapeake Bay Watershed” to provide guidance to offset increased discharges and nutrient loads through nutrient credits • Cecil County wishes to pursue all practical opportunities for nutrient credits for use at the NEAWWTP

  2. Project Scope and Goals • OEA-CSSC Project 9 – Cecil County Wastewater Treatment Capacity Analysis is intended to develop a plan to obtain nutrient load credits for the expansion of the NEAWWTP from 2.0 MGD to 5.0 MGD • Identify projects for nutrient credits using the “Maryland Policy for Nutrient Cap Management and Trading in Maryland’s Chesapeake Bay Watershed,” including • Delineate service area boundaries and estimate flow capacities • Develop preliminary layouts of wastewater collection systems including alternative studies where feasible • Develop plans and exhibits for selected projects • Develop estimates of probable construction cost • Provide data for MDE approval of nutrient load credits • Recommend a plan of action

  3. Project IdentificationCredit OpportunityExisting Significant WWTP’s

  4. Project IdentificationCredit OpportunityExisting Minor WWTP’s

  5. Project IdentificationCredit OpportunityOn-site Sewage Disposal Systems

  6. Project IdentificationCredit OpportunityCommunity Residential OSDS

  7. Project IdentificationCredit OpportunitySchools and Commercial OSDS

  8. Treatment Regions

  9. Projects By Area

  10. Project DevelopmentZoning and Comprehensive Plan

  11. Project DevelopmentTown of Port Deposit Project Total Credits = 1.148MGD Total Cost = $66.7M Per Credit = $3,000 / credit

  12. Project DevelopmentTown of Port Deposit Project Total Cost = $14.3M Total Credits = 0.525MGD

  13. Project Ranking • Each project was ranked for: • Cost • Credit Opportunity • Ease of Implementation • A project list was developed prioritized by ranking and showing a cumulative total of proposed credits

  14. Other Credit Opportunities • Individual OSDS connected to existing sewer • Transfer of development rights • Stormwater management upgrades • Protected lands • Water reuse • Land application of effluent • Trading with municipalities outside of the County

  15. Recommended Plan of Action

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