1. Sanitary Sewer Overflow (SSO) Consent Decree Update Commissioner Meeting May 18, 2016 1

2. Agenda  Schedule Update  Costs  Areas of Concern  Q & A Session 2

3. Schedule Update Roads  6 IDIQ Contracts  135 Construction Task Orders (CTO)  3 Prime Contractors  131.4 sewer miles awarded for construction  123.05 sewer miles rehabilitated as of April 29, 2016 3

4. Schedule Update Roads (Basin Level Update) 4 Sligo Creek100%→ Cabin John98%→ Paint Branch100%→ Lower Anacostia97%→ Beaverdam96%→ Seneca Creek96%→ Dulles Interceptor100%→ Muddy Branch100%→ Broad Creek99%→ Piscataway99%→ Parkway94%→ Western Branch100%→ Mattawoman100%→ Northwest Branch99%→ Horsepen Branch100%→ Northeast Branch79%→91% Oxon Run97%→ Rock Creek96%→ Rock Run100%→ Little Falls96%→ Watts Branch96%→ Note: No Roads work in Patuxent North basin

5. Schedule Update Environmentally Sensitive Areas (ESA)  16 IDIQ Contracts  10 ESA Contractors  ESA includes a total of 233 CTOs  199 (85.4%) CTOs issued for construction  ESA includes a total of 156.38 miles  129.68 (82.9%) miles awarded for construction  69.66 (44.5%) miles rehabilitated as of April 29,2016. 5

6. Schedule Update ESA (Basin Level) 6 Rock Run6%→27% Paint Branch34%→45% Beaverdam63%→75% Piscataway7%→14% Rock Creek48%→49% Sligo Creek37%→41% Cabin John44%→50% Northeast Branch16%→25% Lower Anacostia67%→76% Northwest Branch11%→23% Broad Creek79%→84% Little Falls10%→13% Muddy Branch45%→51% Western Branch1%→12% Seneca Creek49%→58% Watts Branch16%→32% Parkway4%→5% Oxon Run2%→5% Horsepen Branch80%→100% Dulles Interceptor50%→ Mattawoman100%→ Monocacy0%→100% Patuxent North0%→ Patuxent Center100%→

7. Consent Decree Costs Article 6 – Design and Construction Costs (March 2016) 7 Cumulative Projected Cost $1.0 Billion Cumulative Projected Cost $678.3 Million (March 2016) Cumulative Actual Cost $669.4 Million (March 2016)

8. Consent Decree Costs 8 DescriptionProjected Total Cost to Date Actual Cost to Date Consent Decree (All Articles) ** $1,547,601,620.53$957,430,666.09 Article 06 $1,097,389,023.69$692,247,529.38 All other Articles Total Cost *$447,958,471.84$263,157,041.84 General Cost$38,242,843.00$18,694,281.00 Article 02$88,750,707.00$53,483,474.00 Article 03$44,438,066.84$23,326,032.84 Article 04$33,532,801.00$16,431,022.00 Article 05$2,708,764.00 Article 07$11,298,130.00$73,794.00 Article 10$189,891,319.00$117,843,417.00 Article 11$34,052,744.00$25,553,160.00 Supplemental Environmental Projects$5,043,097.00 Stipulated Penalties$2,254,125.00$2,026,094.87

9. Rehabilitation Phase Areas of Concern  Rights of Entry (ROE)  National Park Service (NPS)  Stream Stabilization Permits  Consent Decree Modification 9

10. Areas of Concern Rights of Entry  Total outstanding ROEs have decreased from 120 to 98 since January 2016  6 ROEs requiring involvement from the General Counsel’s Office and Land Unit  Per the guidance of the Commissioners, WSSC is continuing the policy to contact local County Governments for assistance with securing difficult ROEs prior to implementing condemnation  To date, WSSC sent letters on 10 ROEs 10

11. Areas of Concern Rights of Entry 11

12. Areas of Concern National Park Service (NPS)  WSSC continues to incur delays in acquiring NPS permits.  Moving forward  WSSC and NPS had a kick off meeting for Oxon Run on February 24, 2016  The Broad Creek Special Use permit was submitted to NPS on April 11, 2016. We are awaiting a response on moving forward with construction on the three (3) Broad Creek sites.  WSSC will move forward with an EIS for the Greenbelt Park site per NPS request. 12

13. Areas of Concern Stream Permits (M-NCPPC)  35 Stream stabilization permits in Montgomery County, Maryland w/ M-NCPPC (Parks)  34 approved stream stabilization permits as of January 2016  1 permit outstanding 13 34 Approved 1 Outstanding 35 Total

14. Areas of Concern Consent Decree Extension  WSSC GCO has negotiated a Second Amendment to the 2005 Consent Decree with U.S. Environmental Protection Agency (EPA), U.S. Department of Justice (DOJ), and Maryland Department of the Environment (MDE) that extends completion deadlines depending on circumstances  Second Amendment was approved by parties and lodged with US District Court for approval on November 30, 2015  During public comment period, Citizen Groups requested notification of basin projects as they proceed; GCO has negotiated process for notification with the parties  DOJ expected to file Motion to Approve Second Amendment with US District Court in early May, approval hearing date to be determined by the Court 14

15. Questions & Answers 15