Asis - rehabilitate MD developed zone water system

The National Park Service, Contracting Operations East, seeks construction services to rehabilitate the Maryland Developed Zone water distribution system at Assateague Island National Seashore in Berlin, Maryland, with proposals due June 17, 2026. This is a total small business set-aside. Amendment 0001, issued May 29, 2026, extended the proposal deadline and incorporated 45 questions and answers, revised drawings and specifications dated May 28–29, and an updated Department of Labor wage determination dated May 18, 2026.

Place of performance is 6633 Bayberry Drive, Berlin, Maryland 21811. The work encompasses furnishing all labor, supervision, materials, tools, equipment, supplies, transportation, licenses, permits, personal protective equipment, and professional services to rehabilitate approximately 13,500 linear feet of water mains using high-density polyethylene (HDPE) piping, installed primarily via horizontal directional drilling (HDD), plus water system equipment upgrades across five phases: Bayside Drive (4,200 linear feet, ~10 service lines), North Beach (1,150 linear feet, ~11 service lines), Oceanside (6,050 linear feet, ~20 service lines), Old Ferry Landing (2,100 linear feet, ~3 service lines), and Water Supply Area (control building improvements, well pump controls, chlorine injection, surge relief, pressurized tanks). The NAICS code is 237110, Water and Sewer Line and Related Structures Construction. The PSC code is Y1NZ, Construction of Other Utilities.

Contractors must demonstrate a minimum of five years' experience in horizontal boring of underground service water utilities and minimum three years of HDD experience with 80,000 feet of installations. The Notice to Proceed is anticipated September 5, 2026; work must be completed by May 31, 2027. Proposals must include technical approach, management experience, and past performance; evaluation weights all non-price factors equally and approximately equal in importance to price. Construction operations are limited to 7:00 a.m. to 3:30 p.m. Eastern Time, Monday through Friday, excluding federal holidays and the peak visitation period (Memorial Day through Labor Day). Contractors must maintain a minimum 40-foot safe distance from wildlife, particularly wild horses, and comply with Davis-Bacon wage rates. Performance and payment bonds equal to 100 percent of contract price and liability insurance ($100,000 per person / $500,000 per occurrence / $1,000,000 property damage) are required. A mandatory pre-bid site visit occurred May 14, 2026, at 11:00 a.m. ET. The contract includes a base bid and two optional bid items: Island Pumphouse procurement and installation, and South Beach Branch Main installation.