MAWSS Repairs Water Main Break on Old Military Road, Issues Boil Water Advisory

Customers in a section of west Mobile were told to boil their drinking water after a main break along Old Military Road, though utility crews had the pipe repaired by the next day. The advisory — one of the routine but disruptive events in the life of any water system — sent residents scrambling for bottled water and left households brushing their teeth from kettles until testing confirmed the supply was safe.

The break occurred near Old Military Road between Dauphin Island Parkway and Barron Place. The Mobile Area Water & Sewer System said the advisory applied to customers west of Dauphin Island Parkway along Old Military Road to Hillwood Drive West and south along Barron Place, defining an area of west Mobile where every faucet, ice maker and drinking fountain had to be treated with caution until further notice.

Repairs Done, Testing Underway

MAWSS crews completed the repair and began flushing hydrants in the affected area while water samples were tested. The sequence matters: restoring pressure and flushing lines pushes potentially contaminated water out of the distribution pipes, while bacteriological samples confirm that the water remaining in the system meets state health standards.

The utility noted that some testing procedures can take up to 24 hours to produce results, and said it expected to lift the advisory by Thursday morning once samples confirmed the water was safe. MAWSS planned to issue a follow-up public notice when boiling was no longer necessary, closing the loop with the customers who had spent days under the advisory.

Main breaks of this kind happen for a range of reasons — ground movement, aging pipe, pressure surges and temperature swings among them. A break is dangerous to water quality because falling pressure can allow untreated groundwater and soil contaminants to seep into the distribution system through the damaged section; state drinking water rules therefore require a boil advisory whenever a loss of pressure creates that risk, even if no contamination has actually been detected.

MAWSS Guidance During an Advisory

Until the all-clear, the utility advised affected residents to boil water for three minutes or use bottled water for drinking, cooking and brushing teeth, and to let boiled water cool before use. The rolling boil requirement — a full, visible boil sustained for a set time — is the standard safeguard against the bacteria, viruses and parasites that boiling reliably destroys.

Customers restoring service were told to flush faucets and drinking fountains for at least three minutes, or until any discoloration cleared. Flushing removes the air, sediment and discolored water that accumulate in household lines when service is interrupted, and it clears the way for fresh, treated water throughout the plumbing.

Other recommendations from the utility covered the household details that advisories often leave people wondering about. MAWSS said residents should empty refrigerator ice trays and run three cycles of ice to clear water lines, since ice made during the advisory period must be discarded and the ice maker’s supply line needs flushing. Dishwashers should be run only with hot-water washing and heated drying, which provide the heat needed to sanitize dishes, and hand-washed dishes should be cleaned with bottled or boiled water — or rinsed for at least one minute in a solution of one tablespoon of bleach per gallon of tap water.

The bleach solution is a standard household sanitizing mix used by health departments across the country during water advisories. A minute of contact time in properly diluted bleach inactivates the pathogens that might survive on dishes washed in untreated water, providing a backup for households without a heated-dry dishwasher.

Not everything in the household required special treatment. Residents could bathe or shower as usual but were told not to drink tap water, and could launder clothes normally. The distinction comes down to how water is used: activities where water might be swallowed — drinking, cooking, ice, tooth-brushing — demand boiled or bottled water, while bathing and laundry carry negligible risk of ingestion for healthy people.

MAWSS also suggested washing hands with waterless sanitizer or scrubbing vigorously with soap for at least 20 seconds during the advisory period. Standard hand-washing remains effective when followed carefully, but the sanitizer option gave households a simple way to be certain during the days when the tap water’s status was in question.

How a Boil Advisory Works

Boil water advisories sit at the intersection of engineering and public health. When a utility loses pressure in a section of pipe, state drinking water regulations treat the possibility of contamination as real until testing proves otherwise. The utility notifies affected customers, health officials and the media, and the advisory stays in effect until two consecutive rounds of clean bacteriological samples confirm the water is safe — a process that, as MAWSS noted, can take up to a day per round because cultures must incubate.

That timeline explains the gap between the repair itself — finished in a day in this case — and the lifting of the advisory the following morning. The pipe fix is the fast part; proving the water is clean takes as long as the science requires, and utilities cannot legally shortcut it.

MAWSS and West Mobile’s Water System

The Mobile Area Water & Sewer System serves customers across the city and surrounding areas, operating the wells, treatment facilities, storage tanks and hundreds of miles of mains that move water from source to tap. Old Military Road lies in the network of corridors that branch off Dauphin Island Parkway in west Mobile, where residential neighborhoods stretch toward Mobile Bay’s western shorelines.

Breaks on distribution mains are among the most common service calls a water system faces, and MAWSS crews drill for them the way fire departments drill for fires: isolate the broken section with valves, drain and repair the pipe, restore pressure, flush and test. For customers, the visible signs are crews on the street, a pressure drop or water discoloration at the tap, and the door-hanger or public notice that starts the advisory clock.

What Residents Should Do When an Advisory Ends

When MAWSS issues its follow-up notice lifting the boil advisory, the utility’s guidance carries a few final steps. Ice from the advisory period should be discarded and a few fresh cycles run, water softeners and filters may need regeneration or replacement cartridges, and any faucet aerators that collected sediment during flushing can be unscrewed and rinsed. After that, the household returns to normal — tap water for everything, no boiling required.

The end of an advisory is also the moment to restock whatever the household consumed. Residents who keep a modest reserve of bottled water on hand for emergencies, hurricanes and the occasional main break find the next advisory far less disruptive, and south Alabama’s hurricane season gives everyone an additional reason to maintain that habit.

Why the System Works This Way

Events like the Old Military Road break are easy to take for granted once they end, but they illustrate how much invisible engineering stands behind an ordinary glass of water. Distribution systems maintain constant pressure precisely so that nothing can flow into the pipes; the moment pressure drops, the system’s design assumes the worst and public health rules take over. The boil advisory is not a sign of failure so much as the system operating exactly as regulated — conservative, transparent and verifiable.

The costs of a break extend beyond the pipe repair. Crews’ hours, flushed water, sampled tests, customer notifications and the general disruption to households and businesses all follow from a single failed section of main. Utilities across the country, including MAWSS, balance those events against the long-term challenge of maintaining and replacing aging lines before they fail — a capital challenge that grows with every year a system is in the ground.

For the customers west of Dauphin Island Parkway, the sequence played out as designed: a break on Old Military Road, a prompt repair, hydrant flushing and water testing, a clear set of household instructions, and an expected all-clear by Thursday morning once samples confirmed the water was safe. A day or two of inconvenience, handled with a kettle and a little patience, in exchange for the certainty that what comes out of the tap is clean.

A Checklist for the Next Advisory

Water utilities and health departments suggest households affected by a boil advisory keep a few habits in mind. Boil a pot at night and store cooled, covered water in the refrigerator for the next day’s drinking and cooking. Fill clean containers with boiled water for tooth-brushing rather than running the tap each time. Check pets’ water bowls too — animals are susceptible to the same pathogens, so their water should be boiled as well.

Businesses bear their own responsibilities during an advisory: restaurants and cafes must switch to bottled or boiled water for food preparation and beverages, ice machines must be emptied, and beverage dispensers connected to water lines must be taken offline until the notice lifts. Childcare centers, medical offices and schools follow protocols from the health department for the same reason.

The Old Military Road advisory passed without reported illness, which is the quiet metric by which water systems are judged. The utility repaired the main, the testing did its work, and a corner of west Mobile learned once again the small rituals — the rolling three-minute boil, the flushed lines, the three cycles of ice — that turn a water main break into nothing more than a story to tell.