May 10, 2017

Kent County Administration Bldg.

Conference Room 220

Dover, DE

AgendaTime Subject Presenter

8:00 - 9:00 Setup / Refreshments

9:00 - 9:15 Opening Remarks & Program UpdateDoug Rambo

DNREC - Source Water

9:15 – 10:00Water Supply Issues in the Delaware River System: A Tale of

Tunnels, Transfers, Tumult, and Trout Fishing

David Wunsch, P.G.

DE State Geologist /

Director, DE Geol. Survey

10:00 – 10:15 Break

10:15– 11:00Delaware Groundwater and Surface Water Monitoring Infrastructure

Improvements

Scott Andres, P.G.

Delaware Geological Survey

11:00 – 11:40

Update: Source Water Assessments for Surface Water Systems

(City of Wilmington, Hoopes Reservoir,

City of Newark, and SUEZ Water – DE)

Andrew Homsey

University of Delaware

Water Resources Agency

11:40 – 12:00 Public Comment / Questions and Answer Session

New Members Martin Wollaston retired from the University of

Delaware – Water Resources Agency. Andrew Homsey will be taking his place for WRA.

Ed Hallock retired from the Office of Drinking Water. Keith Mensch will be taking his place for ODW.

Stephen Lefebvre is no longer with the Homebuilders Association of Delaware, John Johnson will be taking his place for HBADE.

Surface Water Source Water Assessment Updates We will be hearing today from Andrew Homsey from the

University of Delaware Water Resources Agency on their findings.

Program Updates

Christina Basin Early Warning System Update Another alert came out of the Early Warning System on the

morning of November 9, 2016 – Erich Schuller of the DNREC ERT alerted the EWS of a fire at Bancroft Mills on the west bank of the Brandywine Creek just upstream of the City of Wilmington’s intakes. WRA and the City were alerted of the issue.

Program Updates - continuedSource Water Protection Leadership Forum (SWPLF)

In December 2016, Anita Beckel and Doug Rambo represented DNREC at the first SWP Leadership Forum held by EPA R3 in Philadelphia. The Leadership Forum was held to introduce established and newly formed source water collaborativesto the Source Water practitioners working in Region 3. Martha Narvaez from the UD-WRA and Mary Neutz of SUEZ Water – DE were also in attendance from Delaware representing the Christina Basin Clean Water Partnership.

Delaware Ground Water Monitoring Network Status: Contract Extended The Delaware Geological Survey (DGS) currently monitors groundwater levels in a network

of 68 wells in Delaware. Long time-series of water levels in major aquifers serve as critical baseline data for resource management and analyses of aquifer response to pumping, climatic variability, drought hazards, seawater intrusion, and interaction with streams and their ecosystems.

DGS Evapotranspiration (ET) Study Status: Completed

Research was done to compare direct ET measurements from the new Eddy Covariance sensor at a farm in Sussex County to ET estimates derived by traditional methods (Thornthwaite and Penman-Monteith) and by an Atmometer, a low-tech instrument. Data collected by the new instrumentation will be useful to research by the College of Agriculture and Natural Resources into water demands by crops and development of more efficient irrigation practices and by DNREC to determine water needs for crop irrigation related to irrigation well permits .

Program Updates - continued

Program Updates - continued

3rd Round: Occurrence and Distribution of Selected Contaminants in Public Drinking-Water Supplies in the Surficial Aquifer in Delaware Status: Proposal Received

DNREC has received a proposal from the USGS to revisit the study that was first done in 2000/2001 by Matt Ferrari and re-done by Betzy Reyes in 2010.

We continue to evaluate all new public water well applications and comment on them, prior to construction, with respect to contamination sources located nearby prior to final permitting

SWP continues to work with DNREC SIRS on: the issues related to the PFOS/PFOA contamination in the public wells

near the Delaware Air National Guard / New Castle County Airport area as well as the surficial aquifer at the Dover AFB (no PWS affected).

their continuing investigation into potential sources of contamination in the Hockessin area related to detections of trichloroethene (TCE) in public supply wells. U.S. EPA will be taking over Lead on this.

The EPA Region 3 investigation into the tetrachloroethene (PCE) that has been detected in one of the Town of Delmar’s supply wells. Complete – New well permitted for Town.

We continue to work with DNREC TMS and do reviews of new UST facilities being installed in the State and their location relative to drinking water receptors. (6 reviews since last CTAC meeting)

Program Updates - continued

Status of Source Water Ordinances (2000 Census)

New Castle Kent Sussex

County: Done but addressing minor issues with Level II Watersheds

County: 150-foot WHPA set-back in place. Working to address larger WHPAs and Excellent Recharge Areas

County: Done

Middletown – Done Camden – Done Georgetown– Done

Newark - Done but addressing minor issues with Level II Watersheds

Dover– Done Laurel– Done

New Castle - Done Harrington– Done Lewes– Done

Wilmington - Done Smyrna– Done Milford– Done

Millsboro– Done

Seaford– Done

Status of Source Water Ordinances (2010 Census)

New Castle Kent Sussex

Odessa - Done Clayton - Done Bridgeville - Done

Townsend - Done Milton - Done

Selbyville - Done

Farewell to John Barndt…Moving on to Greener Pastures

John Barndt has decided to retire from the State of Delaware after 32 years of service.

He will be with DNREC through the end of June

John at the control panel of an Anadarko Petroleum drill rig at one of their Marcellus Shale exploration sites in Lycoming County, PA (June 2010) during an EPA Region 3 Source Water Program Meeting field trip.

Next Meeting…

November 1, 2017

Presentations

Open Q & A Period

Thank you for your participation.