sixty-five years of age or over during the current calendar year and is the principle supporter of his household and thereby applies for and receives the additional ‘homeowner grant payable to such person under the provisions of the said Provincial Homeowner Grant Act shall be entitled, with respect to the property for which the said application is made, to a waiver of, and there shall be waived, the amount of Six Dollars ($6.00) of the total annual user rate chargeable under the provisions of By-law No. 991 of the City being the “City of Port Coquitlam Waterworks Regulation By-law, 1970, No. 991", as amended, (b) The amount of the said abatement, if not deducted from the rates and charges imposed by By~law No. 991 at the time of payment shall be paid by the City Treasurer to the person entitled thereto without further order of the Council. 3.. This By-law shall apply to the 1978 calendar year only. 4. This By~law may be cited for all purposes as the "Senior Citizens Water and Sewer Rates and Charges Partial Waiver By-law, 1978, No. 1589". .