CDI 2 WASH Program<br> The “Field Level Arsenic Testing Guideline” provides guidance for testing arsenic in groundwater in simple and cost-effective way. The guideline covers different aspects like costing involved in a testing program, justification of selecting field kits, sample collection procedure, interferences, data management, quality control, safety, waste management issues along with the testing procedure. The guideline will be useful for all technicians, researchers and practitioners for practical purpose related to arsenic test for promoting safe water supply.