Specifications include, but are not limited to: A.Only generators from the following manufacturers are acceptable: Caterpillar, Kohler, Cummins, or MTU On-Site Energy. B.All Automatic Transfer Switches must be either Asco Series 300 or Zenith ZTG models with NEMA 3R enclosures with ATS Strip Heaters. C.Generator enclosures must be weatherproof, lockable, and provide level 1 sound attenuation. Enclosures must allow full access to the generator and its components. D.Fuel Tanks 1.Must meet the UL 142 standard. 2.Double wall construction. 3.Sized to allow for a twenty-four (24) hour run time. E.Individual Generator and Transfer Switch requirements. 1.Patuxent Park West WWPS a.Generator 1)Size – 25 kW 2)Voltage – 120/240 AC; 3 phase 3)Circuit Breaker – 100 amp b.Automatic Transfer Switch - 100 amp minimum 2.Breton Bay WWPS a.Generator 1)Size – 60 kW 2)Voltage – 120/240 AC; 3 phase 3)Circuit Breaker –200 amp b.Automatic Transfer Switch - 200 amp minimum.