City of Nashua RFP 0929-041221
Air Quality and Landfill Gas Testing
Monitoring Location Analysis Frequency
Shady Lane Gas Collection System Landfill Gas
Trench well with highest % LEL EPA Method T0-14 VOCs, (Resultsto be
Level (GWP-1,GWP-2 or GWP- reported in both PPBV and ug/m3), October,
3); Gas Collection System SP-1 Method 3C&25C Methane/Non- December, and
March of each
(Flow from trench and wells) Methane Organics (with methane year
SP-2 (Blower discharge) detection limit of 1PPMV), and ASTM
Method 5504 for Hydrogen Sulfide
(Include results of Blank samples)
New Searles School Indoor Air Quality
Lobby, Media Center, Room 50, EPA Method T0-14 VOCs, (Resultsto be October,
Cafeteria, Outside Room 150, Front | reported in both PPBV and ug/m3), December, and
of Major Air Intake (Roof Unit) Method 3C&25C Methane/Non-Methane_ | March of each
Organics (with methane detection limit of | year
1PPMV), and ASTM Method 5504 for
Hydrogen Sulfide (Include results of Blank
samples)
TRC has a dedicated QA/QC group focused on providing our clients with defensible data, from sample
collection through analytical reporting. Our QA/QC group is made up of experienced analytical chemists
with more than 30 years of relevant project experience.
Field data sheets and chain of custody forms will be reviewed for completeness and to ensure that the
proper collection techniques were followed. In addition, the laboratory analytical data package will be
reviewed to ensure the proper analytical methods were used and that the data are within acceptable limits.
The analytical instrument calibration, compound identification, precision and accuracy will all be reviewed.
The minimum detection limits (MDL) required for this program are listed in the following sections.
Method 3C & 25C Methane/Non-Methane Organics
The MDL for Methane using Method 3C is 0.5% or 0.50 ppmv. The reporting limit for the Non- Methane
organics using Method 25C reporting as carbon is 1% or Ippmv.
ASTM Method 5504 for Hydrogen Sulfide
The MDLfor Hydrogen Sulfide is 5.0 ppb or 0.005 mg/m?
04/12/2021 | Proposal No. 437762
Manchester, NH 2 <7 | rec
