The person The person responsible: Water test results responsible receives show contamination using water water from a source Notification from Treats the water and re-tests to check that is not potable municipality potability before using water Adverse event Rinses (with potable water) (except for causing tomatoes these must be discarded) or – contamination of disposes of any product that has come source into contact with contaminated water The person The person responsible: Water test results responsible stores Stops using water show contamination water in an unclean from cistern Empties and cleans cistern, tank or Adverse causing cistern/tank/container or treats water container or with a contamination of then cleans cistern/tank/container when damaged lid/no lid cistern tank is empty Re-tests to check potability before using water Repairs or replaces lid Rinses (with potable water) (except for tomatoes these must be discarded) or – disposes of any product that has come into contact with contaminated water Re-trains employees on water treatment procedures The person The person responsible: Free chlorine test responsible does not Stops using water strips show that free treat water properly chlorine in wash or Treats the water and re-tests to check (i.e., for potability) water is below 2 potability before using water ppm Rinses (with potable water) (except for Water tests results tomatoes these must be discarded) or – show contamination disposes of any product that has come ORP reading is into contact with contaminated water 650 mV The person The person responsible: tests indicate responsible does not Stops using water water is contaminated use potable water to Empties the flumes/washer, cleans and fill or replenish refills them with potable water OR treats flumes/washers the water for potability Rinses (with potable (except for tomatoes these must be discarded) or – disposes of product in direct contact with the contaminated water
The person responsible receives water from a source that is not potable Water test results show contamination Notification from municipality Adverse event causing contamination of source The person responsible: using water Treats the water and re-tests to check potability before using water Rinses (with potable water) (except for tomatoes – these must be discarded) or disposes of any product that has come into contact with contaminated water The person responsible stores water in an unclean cistern, tank or container or with a damaged lid/no lid Water test results show contamination from cistern Adverse causing contamination of cistern The person responsible: Stops using water Empties and cleans cistern/tank/container or treats water then cleans cistern/tank/container when tank is empty Re-tests to check potability before using water Repairs or replaces lid Rinses (with potable water) (except for tomatoes – these must be discarded) or disposes of any product that has come into contact with contaminated water Re-trains employees on water treatment procedures The person responsible does not treat water properly (i.e., for potability) Free chlorine test strips show that free chlorine in wash or water is below 2 ppm Water tests results show contamination ORP reading is 650 mV The person responsible: Stops using water Treats the water and re-tests to check potability before using water Rinses (with potable water) (except for tomatoes – these must be discarded) or disposes of any product that has come into contact with contaminated water The person responsible does not use potable water to fill or replenish flumes/washers tests indicate water is contaminated The person responsible: Stops using water Empties the flumes/washer, cleans and refills them with potable water OR treats the water for potability Rinses (with potable (except for tomatoes – these must be discarded) or disposes of product in direct contact with the contaminated water
CORRECTED-CanadaGAP-Greenhouse-Manual-7.1-2018-ENG-tracked-changes.docx