A04_SOW.docx

STATEMENT OF WORK

PMIS: 312220 Replace Water Treatment Plant Transducers and Meters FACILITIES (Water Treatment Plants) Pressure Transducer and Flow Meter Purchase

LAKE MEAD NATIONAL RECREATION AREA (NRA)

Part I – Purpose

To enable the National Park Service (NPS) to obtain quality direct replacement flow meters and pressure transducers located at Katherine Landing, Calville Bay and Echo Bay. These areas are within Lake Mead National Recreation Area.

If these parts are not direct replacements…the “equal to” parts must be compatible with the current Supervisory Control And Data Acquisition(SCADA) systems and other controls… as to ensure proper function and fit.

Part II – Background Flow meters and pressure transducers have a limited life cycle. They are delicate items that require expert care and maintenance to ensure full performance. These parts are an integral part of micro-filtration technology and enable lower cost treatment at a much higher-level treatment. These parts are not only preferred by NPS staff but are also a requirement of Arizona and Nevada regulatory agencies to ensure compliance with all State and Federal requirements.

Part III – Description This project entails the procurement of 3 flow meters and 14 pressure transducers. 1 flow meter and 5 pressure transducers will be for Katherine Landing. Katherines Landing flow meter has a remote read and therefore may have 2 part numbers. 1 flow meter and 5 pressure transducers replaced at Echo Bay and 1 flow meter and 4 pressure transducers at Callville Bay. This project only covers the purchase of new parts. The Utility Service Branch personnel will complete installation of the new items.

The procurement will include the following:

3x flow meters 13x pressure transducers

Specifications Pressure Transducers, Delta Controls Part# SP-E591YCNG3Y25VCC (Or Equal), Cable suspended level transmitter, 316 SS, Nylon, PVC and FKM, 2-wire twisted pair, 4-20 mADC, isolated and intrinsically safe, 13VDC min to 35 VDC max, accuracy= +/- 0.5% of max range.

Flow Meters, Katherine Landing meter: Brooks model# 8705TSA040C1W0N0B3 Katherine Landing flow indicating transmitter model # 8732CT12N0 (Or Equal) Echo Bay meter/transmitter combo: Brooks model# 7403D4A1C1AGAA (Or Equal) Callville Bay meter/transmitter combo: Brooks model# 7403D4A1C1AGAA (Or Equal) The items above can be equal to the brand names provided but they must be compatible with the current equipment.

Contractor Requirements Deliver 3 new flow meters and 13 pressure transducers by the delivery date.