Chemical Monitoring Waiver
Reducing compliance monitoring costs while improving source water protection.
Community and non-transient, non-community water suppliers are required under the Safe Drinking Water Act to test annually for both volatile organic compounds (VOCs) and synthetic organic compounds (SOCs). NHDES, however, offers a sampling waiver program that allows water suppliers to reduce their required sampling for VOCs and/or SOCs by implementing a source protection program. Reduced sampling is a cost-saving benefit for the public water system.
Apply for a Chemical Monitoring Waiver
Applying for a chemical monitoring waiver is not difficult and there is no application fee. Public water systems may apply for a 3-year VOC and a 6-year SOC waiver to reduce required drinking water compliance sampling. In exchange, water systems must implement a source protection program that includes:
- Inventorying potential contamination sources (PCS) within the source protection area.
- Distributing educational materials to residents.
- Inspecting potential contamination sources (PCSs) that use regulated substances.
A public water system source may not be eligible for a Chemical Monitoring Waiver if it is not in compliance with safe drinking water regulations, the source currently has a VOC/SOC detect, or certain source water hazards within the sanitary protective area or source water protection area. To apply for a Chemical Monitoring Waiver, contact the Drinking Water and Groundwater Bureau at (603) 271-2862 or [email protected].
Renew your Chemical Monitoring Waiver
Public water systems that currently have VOC and/or SOC Chemical Monitoring Waivers must renew their chemical monitoring waivers every three years. Renewing your waiver requires updating a PCS inventory through a “Windshield Survey,” sending educational materials within the Source Water Protection Area (e.g., wellhead protection area), and for large public water systems, completing on-site “BMP” inspections.
Large public water systems are required to complete on-site BMP inspections at Potential Contamination Sources (PCSs). NHDES provides a number of guidance documents to help the entities, as well as an online BMP inspector training program. Large PWSs must submit a Best Management Practice Inspection Questionnaire.
Educational mailings must be done within 30 days after NHDES approves a waiver, at which time an Educational Mailing Completion Form must be sent to the NHDES program manager.
NHDES provides guidance on how to update the PCS inventory by conducting a Windshield Survey, and a Potential Contamination Source Windshield Survey Form must be submitted.