NexSens Buoy-Based Lake Water Temperature Profile Systems
This is a Sources Sought Notice and Request for Information (RFI) only. This is not a solicitation announcement, nor is it a Request for Proposal (RFP). No solicitation is currently available. This request does not obligate the Government in any contract award. The Government will not pay for the provision of any information, nor will it compensate any respondents for the development of such information. Do not submit cost proposals or cost information. Response to this notice is strictly voluntary and will not affect any firm's ability to submit a proposal if and when a solicitation is issued.
The U.S. Army Corps of Engineers (USACE), Pittsburgh District, is conducting market research to identify potential sources to provide maintenance services for existing NexSens, buoy based, lake water temperature profile systems.
The information gathered will be used by the Government to make appropriate acquisition decisions.
Description of Requirement
Maintenance and service for the existing NexSens, buoy-based, lake water quality network. The principal components of the water quality buoy network include a floating buoy platform, a submersible data logger, telemetry system, a waterproof marine enclosure, a string of temperature thermistors and in some cases a water quality meter (sonde).
Lake water quality buoys are located at 12 District reservoirs: Allegheny Reservoir, East Branch Clarion River Lake, Tionesta Lake, Woodcock Creek Lake, Mahoning Creek Lake, Shenango Lake, Loyalhanna Lake, Michael J. Kirwan Reservoir, Berlin Lake, Youghiogheny River Lake, Tygart Lake, and Stonewall Jackson Lake.
Water quality data collected by the buoys are utilized by accessing the internet in near real time to operate the District's selective withdrawal reservoirs, document seasonal lake stratification patterns, and provide natural resource managers and visitors, such as fishermen and boaters, with information on lake conditions. A maintenance contract is necessary to assure continuous operation of these 12 buoy and the peripheral equipment which includes services and parts/supplies listed below.
Services
• Site visits, a maximum of 190 during the 5-year contract period, with a maximum of 38 visits per year to include spring deployment of 11 of the 12 buoys and winter removal of 11 of the 12 buoys.
• Telemetry and data management for each of the 12 sites: Annual interrogation, server interrogation of remote sites to collect and store data, providing current and historical real-time data online (data presentation and dissemination), and providing status alerts and alarms.
• Temperature string characterization.
• Cellular data transmission service for all projects except those with reliable infrastructure for modems and radio telemetry.
• Water quality sonde repairs and tune-ups.
Parts and Supplies
Buoy
Data buoy with polymer-coated foam hull & (3) 6-watt solar panels, 150 lb. buoyancy
NexSens CB-150 Solar Panel
CB-150 solar tower with (3) 8.3W solar panels
Data buoy with polymer-coated foam hull, 50 lb. buoyancy
NexSens CB-Series Data Buoy Battery Tie Down Bracket & Regulator Assembly
Solar marine light with pole mount & 1-3 nautical mile range, 15 flashes per minute, yellow
Solar marine light with flange mount & 1-3 nautical mile range, 15 flashes per minute, yellow
EXO2/EXO3 sonde mooring cage with clamps
Stainless steel data buoy instrument cage, 24"
Data Logger
X2 buoy-mounted data logger with Verizon 4G LTE cellular telemetry
iSIC-CB-V2 buoy mounted data logger
NexSens X2-SDL Submersible Data Logger with Verizon 4G LTE telemetry
NexSens X2-SDL Submersible Data Logger with Iridium Satellite telemetry
X2 buoy-mounted data logger with Iridium Satellite telemetry
Upgrade from 3100-iSIC/SDL500C or 4100-iSIC/SDL500R to iSIC-CB
Multi-Carrier Cellular Modem, 4G with fallback to 3G/2G
Cellular modem & antenna kit, 4G LTE
Upgrade cellular modem to RTU-C
RF cable, micro-loss, 2', N to N Style
High gain antenna, cellular frequency, 3 dBi
Dual band marine base antenna
NexSens iSIC V2 Data Logger Circuit Board
X2 Main PCB
X2 RTU PCB
NexSens X2/V2/G2 Verizon 4G Cellular Modem Module
NexSens X2 Iridium Modem Module
Snode
Underwater cable adapter for YSI 6-Series sondes, 8 ft.
Underwater junction box & adapter for YSI EXO1/EXO2 sonde, 1m sonde pigtail
Underwater junction box & adapter for YSI EXO1/EXO2 sonde, EXO field cable connection
EXO field cable, 10m
EXO field cable, 4m
EXO field cable, 33m
Temp String
T-Node FR thermistor string sensor, UW connector
TS210 thermistor string with 1m spacing, priced per meter
Mooring clamp kit for NexSens thermistor strings & 3/16" vinyl coated SS wire rope, pack of 2
Underwater cable assembly, 0.5m
Underwater cable assembly, 1m
Underwater cable assembly, 2m
2-way sensorBUS signal splitter
Sonar
EchoRange SS510 smart sonar depth sensor, 20m cable
Buoy mounting hardware for Airmar SS510 sonar depth sensor
UW plug connectorization of sensor cable assembly
Mooring Hardware
Factory installation of anti-chafing sensor cable armor, priced per meter
Custom built 3/16" vinyl coated SS mooring line, priced per meter
Galvanized chain, 3/8", priced per ft.
Galvanized chain, 1/2", priced per ft.
Stainless steel bow shackle, 3/8"
Stainless steel bow shackle, 1/2"
Stainless steel bow shackle, 5/8"
Weight, cast iron, zinc plated, smiley
Red mooring & marker buoy, 18.5" diameter, 121 lb. buoyancy
Pyramid anchor, 70 lb.
Pyramid anchor, 35 lb.
Mooring clamp for water quality instruments, fits 1/4" stainless steel wire rope
Instrument cage clamp for water quality instruments
Batteries/Misc.
UW6 to UW 8 plug to plug cable, X2-SDL connection to RBP500
Battery harness with integrated solar regulator & (1) 28 A-Hr battery
Desiccant kit, 5 ea.
Enclosure vent
Deep cycle marine battery, 12 VDC, 28 A-Hr
UW sensor port plug
Receptacle cap for UW plug connector
Receptacle cap for UW6 solar panel connector
Replacement Probes
EXO Central Wiper Assembly
EXO Temp/Conductivity Sensor
EXO Unguarded pH/ORP Sensor
EXO Optical Dissolved Oxygen Sensor
EXO Turbidity Sensor
EXO Total Algae Sensor
6560 Temperature/Conductivity Sensor
5565A amplified pH/ORP sensor
6150 ROX Dissolved Oxygen Sensor
6136 Turbidity Sensor
Replacement Membranes/Probe Tips/Misc.
Optical Dissolved Oxygen Sensor Cap
EXO Unguarded pH/ORP Sensor Replacement Module
EXO female dummy plug kit
EXO male dummy plug kit
Optical DO Membrane Kit
Optical probe wiper pad kit, 20 pack
Services
EXO Sonde Tune-Up Service
EXO Wiper Probe Seal Replacement
YSI 6-Series sonde Tune-Up Service
Optical sensor quad seal replacement
INTERESTED SOURCES MUST PROVIDE THE FOLLOWING INFORMATION:
Interested and capable sources are requested to provide complete responses with the following information to Loretta Payne, Contract Specialist, no later than 11:00 a.m. on July 1, 2019 via email at loretta.payne@usace.army.mil:
(1) Company/firm name and address
(2) Company/firm point of contact, telephone number and email address
(3) Company/firm cage code and DUNS number
(4) Company business size, to include designation as large business, small business, HUBZone, 8(a), Services Disabled Veteran Owned Small Business, Small Disadvantaged Business or Woman-Owned Business
(5) Details of the company experience and/or capability in providing NexSens, buoy-based, lake water temperature profile systems maintenance.
Loretta Payne, Contract Specialist, Phone 4123957228, Email loretta.payne@usace.army.mil - Michelle McDowell, Contracting Officer, Phone (412) 395-7417, Fax (412) 395-7110, Email michelle.l.mcdowell@usace.army.mil
