Dear Mr. Waggoner:


The Southern California Alliance of Publicly Owned Treatment Works (SCAP), Central Valley Clean
Water Association (CVCWA), Bay Area Clean Water Agencies (BACWA) and California Association of
Sanitation Agencies (CASA) appreciate the opportunity to comment on the February 2020 Draft
Supplemental Guidance: Screening and Evaluating Vapor Intrusion (Draft Supplemental Guidance)
document.

Full Letter – Comments – February 2020 Draft Supplemental Guidance: Screening and Evaluating Vapor Intrusion

CVCWA appreciates the opportunity to comment on this document and to participate
as a stakeholder providing input into the process of adopting a maximum contaminate level
(MCL) for Hexavalent Chromium. CVCWA is a non-profit association of public agencies
located within the Central Valley region that provide wastewater collection, treatment, and
water recycling services to millions of Central Valley residents and businesses. CVCWA
members have a strong commitment to the protection of municipal and domestic beneficial
uses in Central Valley waters. To provide input to the Division of Drinking Water in its
evaluation of the economic feasibility of the proposed MCL, CVCWA offers the following
comments and recommendations.

Full Article – Comments on White Paper Discussion on: Economic Feasibility Analysis in Consideration of a Hexavalent Chromium MCL dated February 2020

Dear Ms. Townsend:

The Central Valley Clean Water Association (CVCWA) appreciates the opportunity to provide comments on the Proposed Definition of Microplastics in Drinking Water. CVCWA is a non-profit association of public agencies located within the Central Valley region that provide wastewater collection, treatment, and water recycling services to millions of Central Valley residents and businesses. CVCWA members have a strong commitment to the protection of municipal and domestic beneficial uses in Central Valley waters.

Full Letter – Comments Regarding Proposed Definition of Microplastics in Drinking Water