Diamond Environmental Services LP

Diamond Environmental Services LP, a self-certified small disadvantaged business based in San Marcos, California, provides portable sanitation rentals, septic pumping, potable water services, and temporary infrastructure equipment to federal agencies as a prime contractor (85% of recent awards) and as a subcontractor on defense shipyard and naval facility projects. The vendor operates as a for-profit limited liability partnership and competes exclusively in full-and-open procurements, with no set-aside designations across its federal footprint.

Diamond Environmental Services LP's service portfolio is narrowly concentrated in waste management and sanitation infrastructure. Recent prime work includes a $30.6 thousand Joshua Tree National Park septic pumping contract running through September 2026 (modification funding Option Year 4), a $35.9 thousand Naval Construction Force (Seabees) potable water services purchase order, a $11.4 thousand U.S. Marine Corps double basin sink lease, and a $3.96 thousand defense agency portable restroom rental in San Diego. The vendor's NAICS distribution reflects this specialization: 36 awards in Septic Tank and Related Services, 10 in All Other Miscellaneous Waste Management Services, and 9 in Enameled Iron and Metal Sanitary Ware Manufacturing. The top PSC codes are Housekeeping—Waste Treatment/Storage (21 awards) and Lease Or Rental Of Equipment—Toiletries (13 awards).

Customer concentration spans 24 distinct federal agencies, with the top five accounting for 52% of awards by count and 74% of combined potential value. By award count, the Department of the Navy Naval Facilities Engineering Command and Naval Sea Systems Command tie at 12 awards each, followed by the U.S. Marine Corps (11 awards), the Department of Agriculture Forest Service Pacific Southwest Region (9 awards), and U.S. Special Operations Command (9 awards). By dollar value, the Department of Homeland Security Customs and Border Protection leads with $791 thousand across 3 awards, followed by the General Services Administration Federal Acquisition Service ($500 thousand, 1 award), Special Operations Command ($426 thousand, 9 awards), the Marine Corps ($199 thousand, 11 awards), and the Department of the Air Force Materiel Command ($191 thousand, 4 awards).

Diamond Environmental Services LP places task orders under five parent vehicles: Indefinite Delivery Contract M0068102D0008 (12 task orders, $20 thousand combined value), Waterfront MACC IV (9 task orders), Indefinite Delivery Contract F0470002D0009 (4 task orders, $191 thousand), GSA Federal Supply Schedule GS07F014GA (2 task orders, $67 thousand), and Indefinite Delivery Contract N0002418D4331 (2 task orders).

Activity has been modest and irregular—6 awards in 2022, 1 in 2023, 3 in 2024, 3 in 2025, and 1 in 2026—with only 1 award (valued at $4 thousand) reaching completion inside the next twenty-four months. Combined potential value across all 102 awards stands at $2.9 million, though actual obligations total $3.7 million. The vendor's sub-award footprint (15% of awards) includes work under National Steel and Shipbuilding Company on USS America and USS Chung-Hoon/USS James E. Williams repair rentals, under Chugach Consolidated Solutions on Puget Sound Naval Shipyard trailer rentals and metro San Diego porta-potty services, and under Life Cycle Engineering on PMAV sanitation support. Diamond Environmental Services LP has held a SAM.gov registration since 2002, indicating sustained federal contracting presence rooted in niche sanitation and temporary infrastructure services for defense installations and civilian agencies in the Western United States.