Where was the In-Situ RDO method tested?
The In-Situ test program was conducted in 10 laboratories that were extremely diverse. Test sites included laboratories in small, mid-sized, and large wastewater facilities. The 10 sites also represented a mix of municipal, state, and commercial laboratories. All of the laboratories met either DMRQA, state wastewater certification, or NELAC requirements. Testing was conducted on all nine matrices as required by the EPA for Tier 3 approval. Because laboratory technicians found the analysis easy to perform and the instruments easy to operate, the technicians conducted significantly more tests than the number required by the EPA. In total, more than 1,300 tests were completed.
