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1998 / May

DENR MEMORANDUM CIRCULAR NO. 98-06 GUIDELINES IN WATER QUALITY MONITORING May 14, 1998

[ DENR MEMORANDUM CIRCULAR NO. 98-06, May 14, 1998 ]

GUIDELINES IN WATER QUALITY MONITORING



Text Available at Office of the National Administrative Register (ONAR), U.P. Law Complex, Diliman, Quezon City
Adopted: 14 May 1998