Louisa County Range Regional Water Supply ... - Meeting Portal

Louisa County Long Range Regional Water Supply Plan

Louisa County

Town of MineralTown of Louisa

September September 6, 20116, 2011

Louisa CountyLouisa County Board of SupervisorBoard of Supervisor’’s Public Hearings Public Hearing

September 6, 2011 September 6, 2011

9 VAC 259 VAC 25‐‐780780 Local and Regional Water Supply Planning Local and Regional Water Supply Planning

RegulationRegulation

Water Supply Planning Regulation

DEQ Goals

Provide adequate, reliable, and safe water to citizens in a way that balances the need for

environmental protection and provides for future growth.

Establish a comprehensive and continuous planning process for the wise use of our water

resources.


DEQ Goals

Create a water planning partnership among state, local, and regional interests.

Increase public involvement – and support – in resource decisions.


DEQ Goals

Improve our understanding of local water needs for the next 30 years or more.

Improve our understanding of the resource and how it can be sustained in the future.


Implementation Roles ‐

Local

Localities expected to take the lead role in planning for their future water needs.


Summary of Regulation

All counties, cities, and towns will submit a plan to the board, individually or as part of a region.

Local governments and community water systems will coordinate and cooperate with each

other in the development of the plan.

The regulation does not change existing water rights.


Summary of Regulation (cont.)

The regulation establishes a planning process and criteria that local governments will use in the development of the local and regional plans.

Local governments are required

to submit their plan to the board within 2008 to 2010 according to a staggered schedule based on population.

Regional groups have until 2011 to submit a plan.



DEQ will review all local and regional plans to determine compliance with this regulation and consistency with the State Water Resources Plan.

Localities to review their plans every five years to assess adequacy. Updates required every 10

years.

Significant changes require DEQ review.



Required elements include:

A description of existing water sources;

A description of existing water use;



Required elements include (cont.):

A description of existing water resource conditions;

An assessment of projected water demand;




A description of water management actions;

A statement of future need;

An analysis that identifies potential alternatives to

address projected deficits

in supplies;




A copy of the adopted documents, e.g. plans,

ordinances, etc.;

A resolution approving the plan from each local

government that is party to the plan; and

A record of the local public hearing, a copy of all

written comments and the submitter's response to all

written comments received.

Louisa CountyLouisa County Long Range Regional Water Supply PlanLong Range Regional Water Supply Plan

Background

Project Kick‐off Meeting February 2007

Public Information Sessions • January 2008

• March 2009

Draft Plan submitted to VDEQ April 2009

Revised Plan submitted to VDEQ June 2011

Plan serves:• Louisa County, Louisa County Water Authority, Town of

Louisa, and Town of Mineral


Water Source InformationWater Source Information

Surface Water

(1) Community Water System• Municipal System Source:

Northeast Creek Reservoir

(4) Self‐Supplied Users• Non‐Agricultural Users Sources:

Lake Anna, Bowlers Mill

Reservoir, Tanyard

Branch

Creek, Richardson Pond, Spring

Creek Irrigation Lake, (Camp

Creek Impoundment)

Groundwater

(10) Community Water Systems• (3) Municipal Systems Sources:

9 Active Wells• (7) Private Systems Sources:

21 Active Wells

(4) Self‐Supplied Users• Sources:

9 Active Wells

Residents Not Supplied by CWS• Sources:

~ 5,800 Individual Wells


Water Use InformationWater Use Information

Withdrawal for Base Plan Year 2007

4.0* MGD Average Day Withdrawal for Overall County• 14%* Surface Water• * Clarifications:

Lake Anna withdrawal for North Anna Power Station not included

North Anna Power Station uses over 500 times overall County water demand

Groundwater use assumed for Agriculture (Irrigation and Livestock)

Average Day Estimate for Agriculture ~ 313,000 GPD (8%)

6.0 MGD Peak Day Withdrawal

Withdrawal for 2010

Average Day Estimate of 4.2 MGD

Peak Day Estimate of 6.3 MGD


Existing Resources InformationExisting Resources InformationGeologic, Hydrologic, Meteorological, and Environmental Conditions

Why are existing resources relevant?

Impacts expansion or creation of water sources or water systems

Louisa County Examples:• Geologic: Rock formations, faults, terrain dissected by rivers and streams• Hydrologic: Water quality, available supply• Meteorological: Warm summers, mild winters, normally adequate rainfall• Environmental:

4 Listed State Threatened Species, 2 Federal Species of Concern

16 historic places, 2 historic districts

Mining operations impact water quality


Population ProjectionsPopulation Projections

Population Data Population Distribution

YearCounty

Population

Incremental

Population

Increase

Ratio(rural/growth)

Rural AreaPrivate

Communities /

Growth Areas2007 31,220 ‐‐ ‐‐ ‐‐ ‐‐2010 33,153 1,933 50 / 50 966 9672020 41,889 8,736 35 / 65 3,058 5,6782030 50,739 8,850 25 / 75 2,212 6,6382040 57,474 6,735 25 / 75 1,684 5,0512050 65,183 7,709 25 / 75 1,927 5,782


Projected Water DemandProjected Water Demand

YearCounty

Pop.

Private

CommunitiesMunicipal

Service Areas

SSU >

300,000

Gal/Mo

Individual

Wells

Total County

Water

Demand *

Ave.

MGDPeak

MGDAve.

MGDPeak

MGDAve.

MGDPeak

MGDAve.

MGDPeak

MGDAve.

MGDPeak

MGD

2007 31,220 0.172 0.275 0.424 0.648 0.603 0.904 2.78 4.17 3.98 5.99

2010 33,153 0.182 0.290 0.571 0.870 0.596 0.894 2.86 4.29 4.21 6.34

2020 41,889 0.212 0.339 1.62 2.44 0.589 0.884 3.08 4.61 5.49 8.28

2030 50,739 0.238 0.381 2.77 4.17 0.582 0.874 3.20 4.81 6.79 10.2

2040 57,474 0.262 0.420 3.61 5.45 0.576 0.864 3.28 4.92 7.73 11.7

2050 65,183 0.285 0.458 4.54 6.85 0.569 0.854 3.39 5.08 8.78 13.2

* County Water Demand does not include Lake Anna withdrawal

‐

Pop: Population ‐

SSU: Self‐Supplied User ‐

Ave: Annual Average ‐

Peak: Peak Day


Water Demand ManagementWater Demand Management

Water Use Efficiency and Conservation

Current Practices• Uniform Statewide Building Code enforced by County• Sewer charges billed based on water use• Conservation tips distributed annually by LCWA

Suggestions• Several tiers of usage for rate structure• Establish limits for irrigation

Water Loss Reduction ‐

Unaccountable Water ~15%

Suggestions• Detailed Reporting of Repairs and Flushing• Distribution System Upgrades, Including Meter Replacement


Drought Response ManagementDrought Response Management

3 Phases

Watch, Warning, Emergency

Drought Phase Drought Indicator

Watch(entire county)

Precipitation below normal. Streamflows and groundwater

between 10% and 25% historic records. Reservoirs contain

between 90 and 120 days of useable storage.

Warning(entire county)

Precipitation below normal. Streamflows and groundwater

between 5% and 10% historic records. Reservoirs contain

between 60 and 90 days of useable storage.

Emergency(portions of

county)

Precipitation below normal. Streamflows and groundwater are

at 5% or below historic records. Reservoirs contain 60 days or

less of useable storage.


Statement of NeedStatement of Need

Existing Municipal Community Water Systems

Zion Crossroads Service Area• Available source developed by 2025• Additional source required by 2034• If connected to Northeast Creek Service Area, safe yield

capacity of Reservoir can meet Zion Crossroads Demands

(available source developed by 2042)

Proposed Municipal Community Water Systems

If utilizing current municipal sources• Available source developed by 2021• Additional source required by 2041


AlternativesAlternatives

Improve Water Demand Management

Water Use Efficiency, Conservation, and Loss Reduction

Develop New Water Sources

Groundwater Wells

Surface Water Withdrawal

Surface Water Withdrawal with Off‐line Reservoir

Connect Growth Area(s) with Waterline Extensions

Upgrade Northeast Creek Water Treatment Plant

Partnership with Neighboring County

Upgrade Bowlers Mill Reservoir


Questions?

Sara JordanSenior Water Supply Planner

Office of Surface and Ground Water Supply PlanningValley Regional Office, Harrisonburg, VA

(540) 574‐[email protected]

Tammy D. StephensonSupervising Program Coordinator

Office of Surface and Ground Water Supply PlanningBlue Ridge Regional Office, Roanoke, VA

(540) 562‐[email protected]

mailto:[email protected]


Heather A. Campbell, P.E.

Project Manager

Dewberry Richmond Office, VA

(804) 205‐3351

[email protected]


Louisa County Range Regional Water Supply ... - Meeting Portal

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