Advisory Panel on Emerging Contaminants

Unregulated Chemical ContaminantsAPEC Update – September 27, 2013

Unregulated Chemical Contaminants

Committee met on July 27, 2013 to finalize outline for White Paper

Section assignments made

Unregulated Chemical Contaminants

Section One. Introduction

◦1.1 Background of the APEC (Chemical)

◦1.2 Sources of Water

◦1.3 Water Use throughout State

◦1.4 Description of Urban Water Cycle

◦1.5 Exposure Pathways (drinking water, irrigation, etc.)

Unregulated Chemical Contaminants

Section Two. Unregulated Chemical Contaminants Found in Arizona Waters

◦ 2.1 The List

◦ 2.2 Defining Emerging Contaminants

◦ 2.3 Where are they found in AZ?

◦ 2.4 Toxicity

◦ 2.5 Associated Compounds and Other Compounds of

Interest

◦ 2.6 Current Research

Unregulated Chemical Contaminants

List of Potential Contaminants for StudyEstrone

Bisphenol A

EE2 (17a ethynylestradiol)

4-Octylphenol

4-Nonylphenol 2

Ibuprofen

Triclosan

Sucralose

PFOS

PFOA

Iopromide

Atrazine

TCEP

Benzotriazole

TCPP

Sulfamethoxazole

Carbamazepine

Fluoxetine

TonalideDEET

This list is currently being utilized by the Arizona Laboratory on Emerging Contaminants.

- List was generated based on screening criteria that was referenced in the report “Development of indicators and surrogates for chemical contaminant removal during wastewater treatment and reclamation” (WRF 03-014)

Unregulated Chemical Contaminants

List of Potential Contaminants for Study

◦Additional Contaminants of Possible Interest Perchlorate 1,4-Dioxane Hexavalent Chromium 1,2,3 – Trichloropropane (TCP) N-Nitroso-dimethylamine (NDMA) Others????

Unregulated Chemical Contaminants

Section Three. Information & Recommendations for Utilities

◦3.1 Utility Efforts in Research

◦3.2 Current Treatment Technologies

3.2.1 Advanced Treatment Utilities

◦3.3 Sampling & Analysis

◦3.4 Laboratories

Unregulated Chemical Contaminants

Section Four. Information & Recommendations for the Public

◦4.1 Quality over Quantity – Making Better

Choices at Home and at Work

◦4.2 Point of Use Devices

◦4.3 Take Back Programs

Section Five. Summary/Discussion

Unregulated Chemical Contaminants

Next Steps…

◦Committee is preparing drafts of each section of the white paper.

◦Final Draft for Review by November 30, 2013

◦Discussion