Talbot CountyWWTP Upgrades and Sewer

Extensions

April 9, 2015

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Agriculture Urban Municipal Wastewater Septic0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

977,195

187,806

34,425

83,688

710,108

145,096

47,119 57,753

595,642

126,792

75,20946,638

Talbot County Nitrogen Loadings

2009 2017 Target 2025 Target

Po

un

ds

of

Nit

rog

en

Reduction:381,553 lbs

Reduction:37,050 lbs

Reduction:61,014 lbs

Agriculture Urban Municipal Wastewater0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

63,561

11,196

4,180

55,462

7,645

4,631

51,991

6,1197,331

Talbot County Phosphorus Loadings

2009 2017 Target 2025 Target

Po

un

ds

of

Ph

osp

ho

rus

Reduction:11,570 lbs

Reduction:5,077 lbs

Existing WWTPs Major ENR WWTPs

Easton ENR WWTP• 4.0 MGD was constructed in 2007• TN discharge <3.0 mg/l; TP discharge <0.3 mg/l

Region II (St. Michaels) ENR WWTP• 0.660 MGD was constructed in 2008• TN discharge <3.0 mg/l; TP discharge <0.3 mg/l

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Existing WWTPs Minor WWTPs

Trappe BNR WWTP Oxford WWTP

• ENR Upgrades under design by the Town• 0.2 MGD – construction in 2017

Region V (Tilghman)• County seeking BNR/ENR grant and loan funding• 0.15 MGD – construction in 2018

Communities• 4 Shared Sanitary Facilities

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Future WWTPs Community/Village Based ENR WWTPs

Reviewing strategies to construct new Micro-Bio-Reactor (MBR) WWTPS for villages• Cost of extending sewer exceeding costs of a new

community/village based ENR WWTP• Need to review zoning and then develop nutrient

trading strategy with MDE for a discharge permit• Need to prepare applications for funding

Present strategies to the County Council and the public

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Upgraded Region V WWTP Schedule:

MDE has identified Region V WWTP as a priority minor wastewater treatment plant to be upgraded

MDE Application for BNR/ENR Grant Funding was due on January 30, 2015

MDE to publish Priority Funding List in April/May 2015

Earliest Date for funding: July 1, 2015

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Septic Systems And The Chesapeake Bay

Groundwater

SepticTank

Drain Field

Chesapeake Bay

DenitrificationUnit

Schematic of Current Conditions

• The Chesapeake Bay and its tributaries show improved water quality conditions. Growth of algae is greatly reduced. Pollution from bacteria is greatly reduced. Higher oxygen concentrations are found from the surface to the bottom of the water.

• Fish, crabs, oysters and other aquatic life have healthy conditions and occur in greater numbers. 8

Septic Systemsin

Talbot County

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48 septic systems connected

Future Sewer Extensions Talbot County reviewing sewer extensions

to villages and environmentally sensitive areas

Department of Public Works is in the planning process and needs to complete applications for funding

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Future Sewer Extensions County to complete:

Comp Plan Zoning Updating the Comprehensive Water and

Sewerage Plan Part of Planning Process for Sewer

Extensions: Review Tier Maps Review zoning Develop lot counts

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Future Sewer Extensions• Develop lot counts

Village Centers• Estimate flows for improved lots• Estimate flows for infill and new lots based on

adopted zoning Areas of Limited Sewer Availability – Environmentally

Sensitive Areas

• Develop Draft Sewer Service Area Maps• Present Draft Sewer Service Area Maps to County

Council in work sessions/public hearings

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Future Sewer Extensions Update of the Talbot County

Comprehensive Water and Sewerage Plan (CWSP) Needs to be consistent with the currently

adopted Comp Plan The County Council needs to introduce the

Update of the CWSP by Resolution Hold public hearing(s) Plan needs to be adopted by the County

Council then approved by MDE

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Future Sewer Extensions Next Steps:

Conduct public meetings with citizens in areas where sewer will be extended

Review out-of-pocket costs for the citizens• Need information from MDE• Need information from Rural Development

Initiate Design• Continue with public meetings to review costs• Finalize designs and secure permits

Initiate Construction

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ITEMS FOR LOTS AND WASTEWATER FLOWS FLOWS (gpd) REMAINING CAPACITY (gpd)2013 Daily Average Flow 89,667 60,3333-Year Average for Daily Average Flow 93,518 56,482Lots Estimations Lots Estimated FlowInfill – 100 EDUs Estimated (need to review) 100 12,500Bar Neck 43 5,375Fairbank 67 8,375Sherwood 56 7,000Lots outside of VC Zones less than 2 ac. (Inland) 151 18,875Lots outside of VC Zones less than 3 ac. (On water) 72 9,000Totals 489 61,125

Future Region V Sewer Extensions

DISCHARGE CONCENTRATIONS/LOADINGS CONCENTRATIONS LOADING (Pounds/Year for 2013)Region V WWTP Discharges for 2013Total Nitrogen (TN) 19 mg/l 5,189Total Phosphorus (TP) 3.3 mg/l 901Septic Loadings from 389 propertiesTotal Nitrogen (TN) 30 mg/l 8,886Total Phosphorus (TP) 0 mg/l 0Total 2013 TN and TP LoadingsTotal Nitrogen (TN) 14,075Total Phosphorus (TP) 901ENR Technology Discharges at 150,792 gpdTotal Nitrogen (TN) 3 mg/l or less 1,378Total Phosphorus (TP) 0.3 mg/l or less 138

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Future Sewer ExtensionsFuture Considerations

1. This area would be considered as an Area of Limited Sewer Availability1. One (1) tap per house2. One (1) tap for a vacant lot as

shown2. As part of the Comprehensive Water

and Sewerage Plan, the lots would be identified noting only one (1) tap being allocated.

3. 61 sewer taps would be allocated

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