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Article 41
Wastewater Planning Capacity Study
Finance Committee Presentation
To determine whether the Town will vote to adopt a resolution supporting
the Town Manager’s allocation of $142,000, or any other sum, of Sewer
Improvement Funds to investigate wastewater treatment and capacity
management alternatives, including continued conservation measures,
to accommodate wastewater flows above and beyond those flows
necessary to meet existing requirements resulting from development
and re-development under current zoning in a range between 320,000 to
600,000 gallons per day, which represents projected wastewater flows
associated with objectives referenced in the Comprehensive Long Range
Plan and Planned Production Housing Plan and quantified in the
Wastewater Planning Task Force Report dated December 2008, and
furthermore request that the Wastewater Planning Task Force return to a
future Town Meeting to present recommended alternatives, including any
requests for debt authorizations required to implement such wastewater
treatment capacity alternatives, or take any other action relative thereto.
Article 41
Wastewater Planning Capacity Study
Background
 Comprehensive Wastewater Management Plan
(Received Town Meeting Approval in 2003 Town Meeting Article 36)
 Recommended Sewer Extensions to Serve Existing Needs
 Growth Neutral Focus in Sewer Extension Areas
 Allocation of Remaining Wastewater Treatment Capacity for Future Phases
 Comprehensive Long Range Plan (CLRP) & Planned Production
Housing Plan (PPHP) - CLRP accepted by BOS and Planning Board in
2005 and PPHP approved by the BOS and State DHCD in 2005.
 Initiatives recommended for focused re-development in the existing sewer area
(specifically the Village Center areas)
 Desire to Support Economic Development
 Support State Goals and Initiatives Related to Affordable Housing
 Integrated Planning Initiative (IPI)
 Identify and Quantify Alignment Gaps Related to Smart Growth and Development
Initiatives and Wastewater Capacity Limitations
Article 41
Wastewater Planning Capacity Study
Accomplishments to Date
 Released Status of Municipal Wastewater Treatment in Concord Report
in December 2007

Determined that No Municipal Wastewater Treatment Capacity Existed at the
Centralized Treatment Plant to Support CLRP and PPHP Recommendations
 Five Critical Questions Raised
1.
2.
3.
4.
5.
How much wastewater flow is associated with the desired development or redevelopment identified in the PPHP and CLRP?
For what portion of this flow can and will the Town provide municipal wastewater
management options?
In what timeframe is this new, municipally handled flow anticipated to be generated?
How will the Town fund design and construction costs associated with any future
wastewater management solution?
Which areas that are currently under-serviced have the highest value to the Town in
terms of sustaining continued economic growth through redevelopment and housing?
Article 41
Wastewater Planning Capacity Study
Wastewater Planning Task Force (WWPTF)

Board of Selectman - Creation of Wastewater Planning Task Force
(WWPTF) – February 2008

Accomplishments to Date





Meet Monthly or More Often as Necessary
Participants from Board of Selectman, Planning Board, Public Works
Commission, Town Manager, Town Staff and Citizens
Meeting Minutes and Reports Posted to Town Website - Public
Outreach Meeting Held in August 2008
Examined Various Land Use Planning Scenarios and Potential
Development and Redevelopment in Relation to Potential Future
Wastewater Flows
Examined the 5 Critical Questions Raised and Provided Answers to
Questions 1 and 5
Article 41
Wastewater Planning Capacity Study
Planning and Future Wastewater Needs Quantification

Future Land Use Planning and Focused Build-Out Analysis
 West Concord Village Center Focus Area
 Concord Center Village Focus Area
 Thoreau Street / Sudbury Road -Depot Village Center Focus Area

Wastewater Flow Projections

Assumptions and Findings for Village Center Focus Areas
 Build-Out Under Existing Zoning Results in Additional Wastewater Generation of
between ~ 61,000 – 118,000 Gallons per Day Title 5 Flow
 With Revised Zoning Results in Additional Wastewater Generation of up to ~
233,000 Gallons per Day Title 5 Flow

Additional Wastewater Capacity Required for:




Future Comprehensive Wastewater Mgmt Plan Phases
Existing Large Flow Sewer Users – Example: Hospital, Academic Institutions, etc.
Baker Avenue
Existing Sewer System Infill and Development
Article 41
Wastewater Planning Capacity Study
Table 1: Summary of Flow Projections for Existing and Future Needs
Present Needs
(Under
Existing
Zoning)
Potential Flow
Increases (With
Revised Zoning
and Baker
Avenue Sewered)
Future CWMP Phase Sewer Extensions
98,000 gpd
98,000 gpd
Village Center Neighborhoods
61,000 gpd
233,000 gpd
Baker Avenue Focus Area
-
57,000 gpd
Large Flow Sewer Users
75,000 gpd
124,000 gpd
Infill:
20,000 gpd
20,000 gpd
Existing Sewer Area Residential
22,000 gpd
22,000 gpd
Future Sewer Area Residential
44,000 gpd
44,000 gpd
320,000 gpd
598,000 gpd
Other Non-Residential
Total
Article 41
Wastewater Planning Capacity Study
Wastewater Alternatives
 No - Build Alternative


Does Not Translate into “No Action” or “No Growth” Alternative
On-Site Treatment / Disposal of Wastewater Flow Potentially Increases where
Possible
 Possible Consequences of No-Build Alternative





Sewer Moratorium
Permit Exceedance Resulting in Regulatory Consent Order – EPA / DEP
Legal Challenges / Expenses – Hostile Development
Sewer Capacity Problems
Inability for Town to Support :
 Economic Development
 Institutional and Regional Facilities
 Affordable Housing Objectives and State Requirements
 Individual Homeowners’ Residential Expansion - Examples: Bedroom
Additions, In-Law Apartments
Article 41
Wastewater Planning Capacity Study
Wastewater Alternatives

Increase of NPDES Wastewater Discharge Allowance at Existing
Wastewater Treatment Plant

Requires Challenging Regulatory Approval Track

Supplemental Groundwater Discharge with Treatment at Existing
Wastewater Treatment Plant

Construct New Neighborhood Wastewater Treatment Systems

Construct New Town Wastewater Treatment Plant with
Groundwater Discharge

Partner with Private Entities to also Serve Municipal Needs

Demand Management / Capacity Conservation

Explore Regional Partnerships
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Wastewater Planning Capacity Study
Next Steps for Successful Integration

Finalized Wastewater Planning Task Force Report for
Presentation of Findings to Town Meeting (completed)

Presented Findings to the Board of Selectman and
Recommended a Town Meeting Article to Consider Further
Evaluation of Wastewater Management Alternatives
(completed)

Seek Town Meeting Support of Town Manager’s Decision
to Allocate Funding to Perform Wastewater Capacity
Alternatives Analysis

Proposed Article 41 for Spring 2009 Town Meeting
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Wastewater Planning Capacity Study
Objectives of Warrant Article

Increase Town Awareness of Wastewater Capacity Issue

Address Mid-Term and Long-Term Wastewater Capacity Needs of the
Town as Quantified in the WWPTF Report

Gain Support of Town to Proceed to Next Phase of Wastewater
Planning

Seek Town Meeting Support of Town Managers Decision to Allocate
Sewer Improvement Funding to Perform Wastewater Capacity
Alternatives Analysis

Require WWPTF to Attend Future Town Meeting to Present
Recommended Alternative(s)

Require Future Town Meeting Support for any Debt Authorization to
Implement Wastewater Treatment Capacity Alternatives
Article 41
Wastewater Planning Capacity Study
Questions ?
To determine whether the Town will vote to adopt a resolution supporting
the Town Manager’s allocation of $142,000, or any other sum, of Sewer
Improvement Funds to investigate wastewater treatment and capacity
management alternatives, including continued conservation measures,
to accommodate wastewater flows above and beyond those flows
necessary to meet existing requirements resulting from development
and re-development under current zoning in a range between 320,000 to
600,000 gallons per day, which represents projected wastewater flows
associated with objectives referenced in the Comprehensive Long Range
Plan and Planned Production Housing Plan and quantified in the
Wastewater Planning Task Force Report dated December 2008, and
furthermore request that the Wastewater Planning Task Force return to a
future Town Meeting to present recommended alternatives, including any
requests for debt authorizations required to implement such wastewater
treatment capacity alternatives, or take any other action relative thereto.