The document summarizes a presentation given at the CWEA Spring Conference in Palm Springs, CA from April 16-19, 2013. The presentation was given by Allison Mackenzie, CEO of Babcock Laboratories, Inc., and covered regulatory requirements and analytical methods for drinking water, wastewater, and recycled water monitoring. Key points included regulatory agencies governing different programs, laboratory accreditation requirements, and analytical methods specified in permits to test for regulated compounds and constituents of emerging concern.
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1. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Allison Mackenzie
Chief Executive Officer
Babcock Laboratories, Inc.
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
2. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Regulatory Background
◦ Drinking Water
◦ Wastewater
◦ Recycled Water
Laboratory Accreditation
◦ Drinking Water
◦ Wastewater
◦ Resource Conservation Recovery Act
Recycled Water Monitoring
◦ Irrigation
◦ Indirect Potable Reuse
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
3. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Drinking Water
◦ Safe Drinking Water Act (1974)
Establish national primary and secondary drinking
water regulations
◦ California Dept. of Public Health
Regulation of Drinking Water
Establish Maximum Contaminant Levels (MCL)
◦ Cal/EPA Office of Env. Health Hazard Assessment
(OEHHA)
Establish Public Health Goals (PHG)
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
4. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Wastewater
◦ Clean Water Act first passed in 1972
Control water pollution and protect surface water
National Pollutant Discharge Elimination System
(NPDES) permits
◦ California Porter-Cologne Water Quality Control Act
passed in1969
State Water Resources Control Board (State Board)
responsible for water rights and water quality policy.
RWQCBs responsible for NPDES permits and Waste
Discharge Requirements (WDR)
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
5. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Recycled Water
◦ National Policy
USEPA Guidelines for Water Reuse (updated 2012)
◦ California State Policy
Recycled Policy amended in 2013
Roles of CDPH, SWRCB, RWQCB, CDWR, CPUC
Inclusion of Constituents of Emerging Concern (CEC)
MOA between SWRCB & CDPH establishing
responsibilities
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
6. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Recycled Water Responsibilities
◦ California Dept. Public Health
Establish water reclamation criteria
Advise Regional Water Quality Control Boards
Review & Approve Projects
Control of Cross Connections
Abatement of contamination resulting from use where
public health is at risk
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
7. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Recycled Water Responsibilities
◦ State Water Resources Control Board
Protect, coordinate and control water quality
Assignment of water rights
◦ RWQCBs
Evaluate reclamation projects
Establish requirements
Issue permits
Enforce water reclamation requirements
◦ Local health agencies and ordinances
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
8. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Drinking Water Program
◦ requires use of certified/accredited lab
◦ National Environmental Laboratory Accreditation
Program (NELAP)
◦ CA Environmental Laboratory Accreditation
Program (ELAP)
WDRs and NPDES Permits in CA
◦ Usually require labs to be NELAP/ELAP
certified/approved
◦ Can contain language allowing for non-certified
labs to be used with approval of Executive Officer
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
9. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
NELAP & ELAP Accreditation
◦ Fields of Testing: Microbiology, Inorganic
Chemistry, Toxic Chemical Elements (metals),
Volatile Organics, Semi-volatile Organics
◦ Matrix Specific: DW, WW, Hazardous Waste
◦ Method Specific
Examples
Drinking Water uses 500 series methods
Wastewater uses 600 series methods
RCRA uses 8000 series methods
EPA Region IX can give permission for use of
alternative test methods
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
10. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
11. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
◦ Excerpt from Drinking Water Certification
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
12. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
◦ Excerpt from Wastewater Certification
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
13. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Analytical Methods
◦ Written for the specific programs
◦ Validated by EPA labs for specific matrices, ie
drinking water, wastewater, hazardous waste
◦ Modifications of methods are not allowed under
NELAP and must be flagged on reports as non-
accredited
◦ Generally discouraged by lab auditors
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
14. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Master Permit (incl. producer & users)
Irrigation
◦ Low chance of reaching aquifers/groundwater
Prevent public contact & cross connections
Tertiary Effluent
Typical pollutants and methods
Total Coliforms
Biochemical Oxygen Demand
Total Suspended & Dissolved Solids
May include monitoring wells
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
15. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Groundwater Recharge
◦ Two general types
Direct Injection Wells
Spreading basin (ponds)
◦ Monitoring Requirements
Priority Pollutants-Metals, Organics, etc.
Drinking Water Title 22 Primary and Secondary
Standards-Metals, VOCs, SOCs, Radioactivity,
Unregulated Chemicals
Constituents of Emerging Concern (CEC)-
Pharmaceuticals, Personal Care Products, Industrial
and Household Chemicals
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
16. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Monitoring & Reporting Program
◦ Chino Basin Recycled Water Groundwater Recharge
Program
Recycled Water Limitations
Drinking Water MCLs for Metals, VOCs, SOCs,
Radionuclides, TTHM, HAA5, Bromate, Chlorite, etc.
Total Coliforms (MPN), Turbidity, TDS, TIN, TOC
Methods by inference to regulation (DW MCLs & 40
CFR Part 136)
Reporting levels acceptable to CDPH, recycled water
quality for unregulated chemicals, State notification
levels, CECs per CDPH
Lab must be ELAP certified
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
17. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Monitoring & Reporting Program
◦ Chino Basin Recycled Water Groundwater
Recharge Program
Monitoring Requirements
Drinking Water Regulated Metals, VOCs, SOCs,
Radionuclides, TTHM, HAA5, Bromate, Chlorite,
etc.
Total Coliforms (MPN), Turbidity, TDS, TIN, TOC
Unregulated Chemicals
Remaining Priority Pollutants
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
18. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Monitoring & Reporting Program
◦ Chino Basin Recycled Water Groundwater Recharge
Program
Laboratory Report
Drinking Water MCLs
EPA 200.7/200.8 for metals
EPA 524 & 504 for volatiles
EPA 507, 508, 515, 531, 547, 525, etc. for SOC’s
EPA 218, EPA 300.1, EPA 6251, EPA 521 for Disinfection &
Unreg Chem
Constituents of Emerging Concern
EPA 1694 and evolving similar analytical techniques
(LC/MS/MS)
Remaining Priority Pollutants
40 CFR Part 136
EPA 608
EPA 624
EPA 625 Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
19. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Monitoring & Reporting Program
◦ Overlap of target analytes between methods
EPA 508 & EPA 608 (Organochlorine Pesticides & PCBs)
Methods end up in different solvents
EPA 524 & EPA 624 (VOCs)
EPA 525 & EPA 625 (Semivolatile Organics)
Solid phase versus liquid-liquid extraction
◦ Meeting DW & 40 CFR Part 136 for “remaining
priority pollutants” requires reporting of similar
methods.
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
20. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Summary
◦ Recycled Water Policy includes participation from
a variety of agencies
◦ Different programs and applications require their
own methods and analytes to meet regulations
◦ Lab Accreditation is by method and matrix
◦ Permits attempt to cover as much as possible,
even chemicals of concern that do not appear on
any previously regulated methods
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
21. CWEA Spring Conference
April 16-19, 2013
Palm Springs, CA
Questions?
◦ Allison Mackenzie
◦ Chief Executive Officer
◦ Babcock Laboratories, Inc.
◦ 6100 Quail Valley Ct.
◦ Riverside, CA 92508
◦ 951-653-3351 ext. 230
◦ amackenzie@babcocklabs.com
Babcock Laboratories, Inc.
www.babcocklabs.com
951-653-3351
Notas do Editor
If there is unlined pond storage with the potential for groundwater recharge then priority pollutants can be required.