Attachment 2.pdf
PDF 175 KB Posted
- Solicitation number
- 300000263992697
- Issued by
- Missouri
About this file
This is a groundwater extraction system monitoring form for the Valley Park TCE Site, a remediation project involving a state or local environmental agency. The form documents the inspection and operational monitoring of an extraction well system designed to remove trichloroethene (TCE) contamination from groundwater. The monitoring protocol requires regular physical component checks of extraction wells, flow meters, antiscalant metering systems, sediment bag filters, and air stripper equipment. Inspectors must verify that all components operate within specified ranges, including extraction well flow rates of 178 to 182 gallons per minute, water levels between 35 to 50 feet below top of casing, and air stripper pressure between 35 to 42 inches of water. The form includes monthly maintenance requirements such as checking antiscalant levels, inspecting air stripper trays, draining the air stripper stack, and tightening Fernco fittings, along with monthly water level gauging at monitoring wells MW-55 and MW-56.
The monitoring form requires field personnel to document system status upon arrival and departure, record readings from the E+H flow meter and pressure gauges, verify pump operation through SiteLink Controls online monitoring system, and confirm proper electrical switch positions and indicator light illumination on the control panel. Key operational parameters include metering pump rates of approximately 0.03 gallons per day, sediment filter pressures ranging from 2.5 to 9 psi depending on filter stage, and variable frequency drive settings between 37 to 42 Hz. The form was revised on March 13, 2020, and serves as a standardized inspection and maintenance record for ongoing groundwater remediation operations at the site, with checkboxes for verification of system conditions and space for inspector notes and documentation of any deviations from normal operating parameters.
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| Attachment 1.pdf |
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Text version
Date Inspected: ___________________ System Status At Arrival: [ ] running [ ] stopped [ ] alarmed
Time Inspected: ___________________ [ ] running [ ] stopped [ ] alarmed
Inspected By: ______________________
Check Physical Components
Component Reading Units (typical operating range)
Extraction Well and Flow Meter
E+H Flow Meter gpm (178 to 182 gpm)
E+H Flow Meter Kgl
E+H Flow Meter gal (use the plus sign only)
Extraction Well Water Level ft below TOC (35 to 50 ft.)
Extraction Well Pressure Gauge psi (8 to 15 psi)
Antiscalant and Metering Pump
Metering Rate gal/day (~0.03 gal/day)
Pump Pressure bar (~3.5 bar)
50:50 Antiscalant Volume gal
Undiluted Antiscalant Onhand drums
Sediment Bag Filters
Pre Bag Filter Pressure psi (5 to 9 psi)
6591A-pre psi (3 to 9 psi)
6591A-post psi (2.5 to 7 psi)
6591A-pre psi (3 to 9 psi)
6591B-post psi (2.5 to 7 psi)
Post Bag Filter Pressure psi (5 to 7 psi)
Capsu-Photohelic Reading (black) (DP-10) in H2O
Capsu-Photohelic Gauge Setpoint (red) (DP-10) ~ 300 in H2O Note: 300 in H2O = 11 psi
Air Stripper Blower
Air Stripper Pressure in H2O (35 to 42 in H2O)
Air Stripper Input Flow cfm x 10 (350 - 450 cfm x10)
TECO-Westinghouse Variable Frequency Drive (VFD)
VFD Freq. Cmd Hz (37 to 42)
VALLEY PARK TCE SITE
GROUNDWATER EXTRACTION SYSTEM MONITORING
System Status When Leaving:
Form Revised 3/13/2020
Control Panel and PLC
Site Walk-Around, Well Gauging, and Other Items
Check Each Visit Check Monthly (first week of month)
[ ] Site walk-around [ ] Check antiscalant level
[ ] Check outfall in storm grate [ ] Check air stripper trays
[ ] Drain air stripper stack [ ] Tighten Fernco fittings on air stripper trays
[ ] Gauge monitoring wells
MW-55
MW-56
SiteLink Controls (https://sitelink.newterra.com/)
Flow Meter Readings
FM-10 Flowrate gpm (178 to 182 gpm)
FM-10 Total Volume gal.
Water Level (LC-10) Control
Water over LC-10 ft.
Water Level ft. below TOC
LC-10 Position ft. below TOC (58 ft)
Low Water Well (Low SP) ft. below TOC (56 ft)
Pump On Level (ON SP) ft. below TOC (50 ft)
Dosing Pump (DP-CH) Setpoints
Manual SP % (50 %)
Automatic SP gpm (200 gpm)
Runtimes
VB-SVE & FAN HRS 0 hrs
ASP-10 Blower HRS hrs
P-10 WELL HRS hrs
DP-VLS PUMP HRS 0 hrs
Notes
Depth to Water
(ft btoc)
Total Depth
(ft btoc)
Verify: Are ASP-10 BLOWER-ON and VFD P-10 ON lights illuminated red and all others are off?
[ ] yes [ ] no, explain:
Verify: Are switch positions: AUTO, OFF, OFF, OFF, AUTO [ ] yes [ ] no, explain:
Form Revised 3/13/2020
File details come from the government source that posted it. Updated .