WASTEWATER DISCHARGES – LIMIT VALUES FOR MONITORING AND CONTROL #
The Haitian standard NH NS 05-061:2002 was adopted by the Technical Committee “Environment and Sanitation: CT 3” on 4/08/2022, containing 29 pages.
NH NS 05-061:2002 has the status of a Haitian standard. It reproduces with modifications the Senegalese standard NS 05-061:2002.
Field of application #
This standard applies to the discharge of all types of wastewater within the country’s territorial limits, more specifically into receiving environments such as surface, ground or marine waters.
This document consists of 4 chapters and 3 appendices: #
Chapter 1: General provisions #
- Any discharge of liquid effluents that causes stagnation, inconveniences for neighbors, or pollution of surface, ground or marine waters is prohibited throughout France.
Chapter 2: Provisions applicable to effluent discharges into a receiving environment #
- Except in the case of combined sewer systems, effluent discharge into wastewater treatment facilities must comply with the following criteria:
- rainwater must be disposed of separately from other black wastewater.
- the effluent must comply with the criteria defining stormwater and wastewater, as well as the discharge limit values (chapter 4).
Chapter 3: Monitoring and control provisions #
- Samples and analyses of receiving environments and effluents are carried out by competent technicians from the Ministry of the Environment or by any other laboratory qualified for this purpose by the said Ministry.
- Technicians or any other persons or entities designated by the Ministry of the Environment and Classified Establishments are responsible for resolving, in collaboration with local administrative authorities, the various problems posed by the alteration or pollution of surface, underground or marine waters.
- The nature and minimum frequency of measurements are specified. Lower thresholds may be set by the relevant department of the Ministry of the Environment, where justified by the sensitivity of the receiving environment. Each discharge must be sampled and analyzed at least twice a year. Unannounced sampling during full activity will result in rejection.
- Receiving environments under special protection are subject to more regular water monitoring and control, with a view to protecting them.
Chapter 4: Parameter limits #
Wastewater discharged into the natural environment must comply with limit values, based on the maximum authorized daily flow, for the following parameters:
Suspended Solids (SS), Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD), Nitrogen and Phosphorus, Phenols, Total Hydrocarbons, Chromium, Cyanides, Arsenic and compounds (in As), Fluorine, Copper, Zinc, Mercury, Lead, Faecal Coliforms, Faecal Streptococci, Salmonella, Cholera Vibrio, E.coli.
Appendices #
- Appendix I: Sampling devices and standardized flow measurement
- Appendix II: Conditions for sampling, transport, storage and analysis
- Appendix III: Spraying
