Assistance, Quality, and Affordability Act of 2014 - Amends the Safe Drinking Water Act to reauthorize, revise, and increase funding for the drinking water state revolving fund (SRF) for FY2015-FY2017. (The Drinking Water SRF program awards capitalization grants to states, which in turn provide financial assistance to public water systems for infrastructure improvements.) Expands the list of activities for which the SRF may be used and revises the process for prioritizing applications for SRF funds.

Sets forth requirements concerning SRF funded projects using goods produced in the United States and giving prevailing wages to laborers and mechanics.

Revises requirements for state Intended Use Plans for SRF funds, in part by requiring the plans to list systems that are not in compliance with national primary drinking water regulation and reserve a specified amount of funding for assistance for disadvantaged communities.

Raises the cap on SRF funding that may be used for projects in American Samoa, Northern Mariana Islands, Guam, and the Virgin Islands.

Repeals requirements for regulations on variance technologies. Repeals state authority to grant variances for compliance with a drinking water regulation requirement specifying a maximum contaminant level or treatment technique.

Directs the EPA to:

• study the presence of pharmaceuticals and personal care products in drinking water sources,
• establish requirements for electronic submission of compliance monitoring data by public water systems,
• collect data on best practices for administration of SRF programs, and
• implement a voluntary certification program for effective water loss and leak control technology.

Reauthorizes a program to provide technical assistance to enable small public water systems to achieve and maintain compliance with applicable national primary drinking water regulations for FY2015-FY2019.