Study participants in this condition will participate in training and in-home sampling for disinfection by-products.

Study participants in this condition will participate in quarterly meetings and deliberative activities of the project's Stakeholder Consultation Core.

Citizen Scientist Training Program Participants is a three year training and in-home sampling program for disinfection byproducts. Participants will be trained and assessed based on their experience in the training program.

Study participants will complete pre-/post-surveys of disinfection byproducts-related knowledge. Participants will answer 21 questions with multiple choice or fill in the blank response options that will be assessed for correctness/completeness.

Study participants will complete pre-/post-surveys of disinfection byproducts-related attitudes. Participants will answer 9 questions related attitudes/behaviors with a five-point Likert scale, ranging from Strongly Disagree to Strongly Agree, where Strongly Agree indicates a greater likelihood for the behavior/more positive attitude.

The proportion of direct ties within the network as compared to the number of possible ties as measured by an unbounded social media analysis.

The influence of each individual within the network (i.e., betweenness and degree centrality) as measured by an unbounded social media analysis.

The number of reciprocal ties, which is the extent to which individuals within the network recognize each other as valued resources/collaborators as measured by an unbounded social media analysis.