Source: http://www.braziliannr.com/brazilian-environmental-legislation/conama-resolution-39307/
Timestamp: 2019-04-20 01:09:16+00:00

Document:
Establishes provisions for the continuous release of processed water or water produced on oil and natural gas sea platforms and makes other provisions.
Art. 1 This Resolution Regulates the continuous release of process or production water from maritime oil and natural gas platforms, establishes discharge standards for oil and greases, defined parameters for their monitoring and sets other relevant provisions.
IX – MIXING ZONE: location within the receptor water body where the initial dilution of effluents occurs.
Art. 3 The salt waters where the platforms are located will, as long as there is not a specific framework, be considered Class 1 Salt Waters, according to the definition included in CONAMA Resolution 357 from March 17, 2005.
Art. 4 Produced water may only be released, directly or indirectly, into the sea as long as it follows the specifications, standards and demands provisioned by this Resolution and as long as it does not subject the sea, in the area surrounding the release, to characteristics that differ from the framework class of the defined area, except within the mixing zone.
Single paragraph. For all purposes of this Resolution the mixing zone is limited to a radius of 500 meters from the release point.
Art. 5 The release of produced waters must comply with the monthly medium arithmetic concentration of oils and greases of up to 29 mg/L, and a maximum daily rate of 42 mg/L.
§ 1 The oil production industry must present a proposal to the National Environment Council (CONAMA), within one year, containing goals for the reduction of the amount of oil and wax that is contained in releases of produced waters.
§ 2 If the monthly rate that is foreseen in the heading of this article is exceeded the licensing environmental organ must be informed immediately after the finding and provided with a report, within 30 days, that provides specifications on the non-conformity with limitation provisions.
§ 3 Whenever the maximum daily rate determined in the heading of this article is exceeded it must be immediately communicated to the environmental organ.
Art. 6 The concentration of oils and greases that is the subject of art. 5 of this Resolution must be reached through gravimetric analysis.
§ 1 The environmental organ may accept other measurement methods and long as they possess a statistically significant correlation with gravimetric analysis.
§ 2 The monthly rate must be determined from daily sample measurements composed of four samples taken during standardized time periods and analysis may be undertaken at a later time provided the samples are still within their validity period.
Art. 7 The Competent environmental organ may authorize the release of waters above the specifications and standards set by this Resolution due to temporary operational contingencies and after the approval of the program and schedule presented by the entrepreneur for the solution of the problem.
Art. 8 The specifications and the possible release of waters produced by platforms located within twelve nautical miles from the coast will be defined by the competent environmental organ and based on dispersion studies presented by the entrepreneur, preferential flow is zero.
Art. 9 The release of produced waters within a radius of less than 10 kilometers from conservation units, and five kilometers from ecologically fragile areas, is banned.
V – complementing parameters: total of organic carbon (COT), pH, salinity, temperature and total ammoniacal nitrogen.
Single paragraph. At the time of the monitoring period that is the subject of the heading of this article samples should be taken, concomitantly, in order to determine the rates of oil and wax substances.
Art. 11 The methodology used for the collection of analysis is specified by scientifically acknowledged technical standards.
Art. 12 Enterprises that operate platforms must, until March 31st of each year, present a report of previous yearly activities including undertaken monitoring processes and the respective adopted methodologies in order to comply with the provisions set by articles 5 and 10.
Single paragraph. The report that is the subject of the heading of this article may contain information on one or several platforms, as the discretion of the competent environmental organ.
Art. 13 The reports presented by entrepreneurs mentioned in art. 12 will be archived and published by the licensing federal organ in the world wide web – Internet.
Art. 14 The standards for the release of compounds and radium isotopes mentioned in art. 10 will be the object of a specific resolution which will be forwarded to the CONAMA Plenary within one year from the date of publication of this Resolution.
Art. 15 Non-compliance with the provisions set by this Resolution will subject offenders to sanctions foreseen by current legislation.
Art. 16 This Resolution shall enter into effect on the date of its publication.

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Art. 6
 art. 5

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