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§131.40 Puerto Rico.

RegSenseWatershed ManagementCFR RegulationsWater QualityEnvironmental Protection Agency (EPA)Water ProgramsPuerto RicoEnvironmentalCFR SectionCWA ComplianceEnglishFocus Area

(a) Use designations for marine waters. In addition to the Commonwealth�s adopted use designations, the following waterbodies in Puerto Rico have the beneficial use designated in this paragraph (a) within the bays specified below, and within the Commonwealth�s territorial seas, as defined in section 502(8) of the Clean Water Act, and 33 CFR 2.05-5, except such waters classified by the Commonwealth as SB.

Waterbody segmentFromToDesignated use
Coastal Waters500m offshore3 miles offshorePrimary Contact Recreation.
Guayanilla & Tallaboa BaysCayo PargueraPunta VerracoPrimary Contact Recreation.
Mayaguez BayPunta GuanajiboPunta AlgarroboPrimary Contact Recreation.
Ponce PortPunta CareneroPunta CucharaPrimary Contact Recreation.
San Juan PortMouth of Rio BayamonPunta El MorroPrimary Contact Recreation.
Yabucoa PortPunta IcacosPunta YeguasPrimary Contact Recreation.

(b) Criteria that apply to Puerto Rico�s marine waters. In addition to all other Commonwealth criteria, the following criteria for bacteria apply to the waterbodies in paragraph (a) of this section:

Bacteria: The fecal coliform geometric mean of a series of representative samples (at least five samples) of the waters taken sequentially shall not exceed 200 colonies/100 ml, and not more than 20 percent of the samples shall exceed 400 colonies/100 ml. The enterococci density in terms of geometric mean of at least five representative samples taken sequentially shall not exceed 35/100 ml. No single sample should exceed the upper confidence limit of 75% using 0.7 as the log standard deviation until sufficient site data exist to establish a site-specific log standard deviation.

(c) Water quality standard variances. The Regional Administrator, EPA Region 2, is authorized to grant variances from the water quality standards in paragraphs (a) and (b) of this section where the requirements of �131.14 are met.

[69 FR 3524, Jan. 26, 2004; 80 FR 51048, Aug. 21, 2015]

['Water Programs']
['Water Quality', 'Watershed Management']
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