RIFA Environmental Monitoring Field
Notes
Environmental Hazards Assessment Program
Environmental Monitoring and Pest Management Branch
Department of Pesticide Regulation
1001 I Street, Sacramento, CA 95812
Trip Date: September 22-24, 1999
Purpose: Monthly surface water monitoring for RIFA insecticides in Orange County.
Personnel: Roger Sava, Johanna Walters and Dave Kim.
9/22/99 Drive to Orange County with sampling supplies.
9/23/99 Collected Samples at the following Sites:
- Bolsa Chica Channel at Westminster Ave.
- East Garden Grove Channel at Gothard
- Bonita Creek at San Diego Creek
- San Diego Creek at Campus Dr.
- Central Irvine Channel (Hines’& El Modeno’s Drain)
- El Modeno Drain (Drain at Portola Pkwy. and Bee Canyon access road)
- Arroyo Trabuco at Oso Parkway (O’Neill Park)
- San Juan Creek at Stonehill Dr.
Nine liters were collected as grab samples at each of the above sites. Samples were split (Geotech® 10 port splitter) on site, water quality measurements were taken at each site except Bonita Creek. The Bonita Creek site was sampled from a culvert, a DO measurement would not be representative of the creek. The pH was not measured on site due to malfunctioning pH meter. We added a new site at a residential storm drain in West Cliff Park, Newport Beach.
Marshburn Creek (Bordier’s Nursery Drain) and the West Cliff Park sites were not sampled due to lack of water.
GPS (non-corrected) readings were taken at all sampling sites. The weather was overcast in the morning and clear and sunny in the afternoon.
9/24/99 Dave flew from Ontario to Sacramento at 6:30 am. Roger and Johanna drove to Sacramento with samples. Aquatic toxicity samples were delivered to DFG at 2 pm. Chemistry samples were delivered to CDFA on Monday 9/27/99
DKim 10/5/99