Any sanitary sewer customer with a direct or indirect footing drain connection to the sanitary sewer system, being properly notified as described under Section 101.03, and remaining in place one hundred and eighty (180) days after said notification, shall be subject to a monthly surcharge of one-hundred dollars ($100.00) for potential un-metered flow contributed to the sanitary sewer system. The payment will be in addition to all other sanitary sewer user charges.