TTS 664:2022

Wastewater Reuse - Agricultural and other Applications - Requirements

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Subject Area Water Quality in General
Year of Declaration 2022
Status Voluntary
ICS Number 13.060.01
Stage Current
Number of Pages 9
Price TT $ 96.00 + VAT

Scope of this Standard

This standard establishes the sampling, testing and maximum permissible limits (MPL) for key parameters related to wastewater reuse in the following classes pertaining to agriculture and landscape irrigation:

  1. Class A -
    1. Irrigation of crops to be eaten uncooked;
    2. Landscape irrigation of all public green areas including but not limited to gardens, sport fields, golf courses and parks without access limitation; and
    3. Washing of enclosures for animals.
    NOTE: The irrigation of crops refers to the application of treated wastewater prior to harvest.

  2. Class B - Irrigation of cereal crops, industrial crops, fodder crops, pasture, trees and crops to be eaten cooked only.
    3. NOTE: Rice is a cereal crop and sugarcane is an industrial crop.

  3. Class C -
    1. Localized irrigation of areas without public access; and
    2. Crops in Class B if exposure of workers does not occur.


NOTE 1: Fodder crops and pasture are not included in Class C.

NOTE 2: Areas without public access include forest and areas of vegetative recuperation. The standard does not provide the permissible limits for wastewater reuse for industrial or construction applications; cleaning roads or buildings; potable water or any other form of reuse not specified in this standard.

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