Safe Drinking Water Act
Understanding the Safe Drinking Water Act
(EPA 2004)

Safe Drinking Water Act:  A Summary of the Act and its Major Requirements
(Congressional Research Service, 2014)
This notice and delay period are intended to allow the violator an opportunity to correct his violation and to give the EPA or State an opportunity to enforcecompliance, thus making citizen enforcement unnecessary.

A citizen suit may not be commenced if the EPA or the State is already diligently prosecuting a civil action in a court to enforce compliance.

In a citizen suit, the court may grant an injunction and award attorney fees and litigation costs to any prevailing or partially prevailing party whenever the court determines such an award is appropriate.  Attorney fees will not be assessed against a citizen unless the court determines the suit is frivolous.
The Safe Drinking Water Act authorizes citizens to enforce compliance with any requirement prescribed by or under the Act.  42 USC ยง 300j-8.  These requirements may include primary drinking water standards (40 CFR Part 141 and EPA-approved State underground injection control requirements (e.g., Ala. Admin. Code Chap. 335-6-8 and Fla. Admin. Code Chap. 62-528). 

Citizens must be adversely affected by the violation and normally must give 60-days notice of the alleged  violation  to  the  alleged  violator, State  and  EPA  prior  to  filing  suit.  40 CFR Part 135, Subpart B.