Pathogen Removal or Inactivation

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Pathogen Removal or Inactivation Technical Advisory Panel Reclaimed Water Rule Jim McCauley (360) 407-7468 jima461@ecy.wa.gov

Pathogen Removal/Inactivation Bacteria Total coliform Fecal coliform E. coli Enterococci Protozoans Giardia lamblia Cryptosporidium Viruses F-particular bacteriophage MS2 Polio Other safe strains

WA Class An or proportionate (unhindered human contact or farming uses) 1 A higher standard is connected to direct aquifer energize 2 New control proposed for groundwater revive with the end goal of drinking water 3 Both Idaho Class An and B have a similar aggregate coliform standard

WA Class An or comparable (unlimited human contact or agrarian uses)

WA Class B or identical 1 (confined utilizations) 1 Several states don't utilize a four class framework, however may have 2-3 classes

WA Class C or equal (limited human & constrained horticultural uses)

WA Class C or equal (limited human & restricted rural uses)

WA Class D or equal (sewer flushing, nonfood crops, treated sustenance crops)

WA Class D or equal (sewer flushing, nonfood crops, treated nourishment crops)

Pathogen Reduction through Treatment Technique Prescriptive treatment strategies Oxidation Coagulation Filtration Conventional media Membrane Alternative, i.e. texture Disinfection "more elevated amount" Standard

Treatment Technique Comparison 1 Idaho additionally has a Class E, essential gushing for woods water system just

Treatment Technique Comparison

Wastewater Discharge Standards Fecal coliform Monthly geometric mean ≤ 200/100ml Weekly geometric mean ≤ 400/100 ml AKART

AKART is the prerequisite for "all known, accessible and sensible strategies for avoidance, control and treatment" All waste releases must be furnished with AKART before passage into the state's waters, paying little respect to the nature of the getting water

Water Quality Standards for Surface Waters WAC 173-201A Extraordinary essential contact: insurance against waterborne malady shellfish gathering ranges Primary contact amusement coordinate contact with water Secondary contact entertainment water contact would be constrained (e.g., swimming or angling)

WA Freshwater Standards Fecal Coliform (1) If under 10 test focuses, this esteem is a most extreme.

WA Marine Water Standards Fecal Coliform & Enterococci (1) If under 10 test focuses, this esteem is a most extreme.

WA Groundwater Standards Purpose: build up most extreme contaminant levels Drinking water = most noteworthy quality ? Ecological frameworks may require higher standard Special security ranges WAC 173-200-090 Close to regular ground water quality WAC 173-200-050 Antidegradation Only 1 pathogen is recorded: add up to coliform – 1/100ml

Antidegradation strategy: Background water quality must be ensured Cannot hurt a gainful utilize Cannot abuse Ground Water Quality Standards AKART must be given