Central California Ozone Study (CCOS) - Desert Research Institute

CCOS Field Operations Plan (DRAFT) Version 2: 5/31/00
NOY/NOY* analyzers. Each O3 analyzer that is installed as part of CCOS will be challenged
with zero air followed by with ozone concentrations near 400 ppb and 90 ppb to cover the span
and precison levels, respectively. Each NO/NOX, NO/NOY, and NOY/NOY* will be
challenged with zero air followed by NO concentrations near 400 ppb and 90 ppb to cover the
span and precision levels, respectively. A mixture of NO at 30 ppb and NO2 at 60 ppb will be
generated by gas phase titration to check the converter efficiency of the NO/NOX, NO/NOY,
and NOY/NOY* analyzers. Data from calibration checks will be retrieved and reviewed daily.
The CCOS supplemental surface air quality and meteorological measurement sites will
be operated by personnel from Desert Research Institute, T&B Systems, University of California
Berkeley, California Air Resources Board, Bay Area AQMD, Sacramento Metropolitan APCD,
San Joaquin Valley Unified APCD, San Luis Obispo County APCD or the Shasta County
APCD. Table 2.4-5 provides a summary of the tasks required of local site operators at each type
of supplemental site (S0, S1, S2 or R).
DRI will be responsible for operating the White Cloud (S1) and Granite Bay (R) sites. DRI
personnel will make weekly visits to the Granite Bay Research site to perform maintenance tasks
and to do a visual check of the instruments. Personnel will operate the VOC canisters and
carbonyl cartridges during IOP’s. They will install canisters and cartridges the day before the
IOP starts, change canisters and cartridges each day, and remove the final samples at the end of
the IOP. They will send the filled canisters and exposed cartridges to the proper parties at the
expense of separate contracts. They will also perform minor repairs at the direction of the project
manager or designee.
T&B will be responsible for operating the Bodega Bay (S1), Turlock (S1), and Pecheco
Pass (S2) sites. Personnel will make weekly visits to the Pecheco Pass site to perform
maintenance tasks (e.g., fill reagent reservoirs for NO 2 /PAN and HCHO analyzers) and to do a
visual check of the instruments. Personnel will operate the VOC canisters and carbonyl
cartridges during IOP’s. They will install canisters and cartridges the day before the IOP starts,
change canisters and cartridges each day, and remove the final samples at the end of the IOP.
They will send the filled canisters and exposed cartridges to the proper parties at the expense of
separate contracts. Personnel will also be available for emergency site visits to investigate
problems found during data review. They will also perform minor repairs at the direction of the
project manager or designee.
UCB will be responsible for operating the Sunol (R) and Altamont (S2) sites. Personnel
will make weekly visits to both sites to perform maintenance tasks (e.g., fill reagent reservoirs
for NO 2 /PAN and HCHO analyzers) and to do a visual check of the instruments. Personnel will
operate the VOC canisters and carbonyl cartridges during IOP’s. They will install canisters and
cartridges the day before the IOP starts, change canisters and cartridges each day, and remove
the final samples at the end of the IOP. They will send the filled canisters and exposed
cartridges to the proper parties at the expense of separate contracts. Personnel will also be
available for emergency site visits to investigate problems found during data review. They will
also perform minor repairs at the direction of the project manager or designee.
Personnel from the California Air Resources Board and local districts (BAAQMD,
SJVAPCD, Shasta County APCD, SLOAPCD) will provide operational support for the other
Chapter 2: FIELD MEASUREMENTS 2-30