Recommended for targeted testing for anions in drinking water with high precision. This package analyzes for fluoride, nitrate (as N), nitrite (as N), chloride, sulfate, bromide, and orthophosphate. Anions such as fluoride and orthophosphate are often added by public water systems to improve dental health and to prevent corrosion, respectively. Other anions, such as nitrate and nitrite, may enter the water supply due to agricultural runoff or other industrial activities. Anions may also be naturally occurring. Certified lab testing Fast turnaround at lab (5 business days) Shipping included: Standard shipping to you, Overnight to the lab Expert treatment advice This Tap Score water test package provides all required materials to properly collect and submit a sample for certified laboratory testing. Reported results will include detailed, quantified analysis of all parameters tested.