Pima County RWRD

Ongoing system-wide odor evaluations for Pima County, AZ at each of the six waste treatment facilities in the Tucson area. All packed tower odor scrubbers, biofilters and carbon adsorbtion systems are evaluated on either a monthly or quarterly basis. All collection line chemical feed sites are monitored quarterly with liquid and airborne H2S analysis on a quarterly basis. Special projects, such as odor panel testing and total reduced sulfur testing are performed upon request, as well as collection line evaluations that are not part of the chemical treatment program.  

Scrubber startup, recommended scrubber modifications, training, and performance testing on one two-stage DEI Systems, Inc. packed tower odor scrubber at the Arlington County WRF in Arlington, VA. Project performed for Frucon Contracting.

Collection line evaluation for the consortium of the valley’s cities as a specialty sub-consultant under Malcolm Pirnie to test the Salt River Outfall Interceptor in Mesa, Tempe and Phoenix for hydrogen sulfide, odors and liquid phase testing.

Collection line evaluation for the consortium of the valley’s cities and The City of Phoenix under a joint partnership with CH2M Hill to test the Southern Avenue Interceptor and the Salt River Outfall Interceptor in Mesa, Tempe and Phoenix.

Quarterly hydrogen sulfide fenceline, odor control systems monitoring and odor consulting for the Albuquerque Water Utility Authority in Albuquerque, NM at the Southside Wastewater Reclamation Facility. 

Hydrogen Sulfide fenceline monitoring for the City of Phoenix at the 23rd Ave. Wastewater Treatment Plant and some of the twenty-nine pump stations. 

Packed tower odor scrubber performance testing at the Point Loma WWTP in San Diego, CA, Hyperion WWTP in Los Angeles, CA, the Orange County Sanitation District in Huntington Beach, CA, and New Rochelle WWTF in New Rochelle, NY. Additionally performed fiberglass inspection on various ductwork for Perris WWTP, Perris, CA.

Quarterly scrubber, fenceline and in-plant testing at three City owned wastewater facilities and one pump station in Peoria, AZ. 

Collection line evaluation on eight collection line locations in Gilbert, AZ performed for CH2M Hill.

Five-day 24-hour performance testing with continuous hydrogen sulfide injection at the Sand Island WWTP in Honolulu, HI for Hawaiian Dredging Corp./Azzuro Corp.

Monthly and quarterly odor and hydrogen sulfide monitoring at the Scottsdale Water Campus, Gainey Ranch WRF, and at all of the larger pump stations in Scottsdale, AZ., as well as miscellaneous odor and airflow evaluations at the water reclamation facility and in the municipal collection system. 

Hydrogen sulfide scrubber and fenceline monitoring at the Arrowhead Ranch Water Reclamation Facility in Glendale, AZ. 

Quarterly hydrogen sulfide scrubber and fenceline monitoring at the West Area Water Reclamation Facility in Glendale, AZ. 

Scrubber maintenance on two U.S. Filter packed tower odor control systems and carbon adsorber follower at the Palm Valley WRF in Litchfield Park, AZ. Scrubber maintenance and quarterly fenceline and scrubber performance testing on one 3,000 CFM Duall packed tower odor scrubber at the Gold Canyon WRF in Gold Canyon, AZ. 

Carbon adsorber hydrogen sulfide quarterly monitoring at the North Las Vegas Wastewater Reclamation Facility.

Bohn in-ground biofilter quarterly monitoring at the Carver & Rural Road Lift Station and an air extraction location at Priest Road & Southern Ave. in Tempe, AZ.