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AGING INFRASTRUCTURE & DOUGHT-LIKE WEATHER – A BAD COMBINATION
In the City of Houston, news reports have highlighted the effects of the dry, drought-like weather on the aging water infrastructure with main line water breaks causing road sink holes and service outages. In MUD 208, although not as dramatic as breaks shown in news reports, we have experienced our share of water line breaks too.
Fortunately, service outages to customers have been minimized due to the quick response by our operator, H2O Consulting, and their willingness to work late into the night to restore service to our customers.
Though the line breaks have been exasperated by the dry weather, line breaks have been occurring more often over the last several years due to an aging water and sewer infrastructure. MUD 208 has had 41 water line breaks since 1999. There were 13 line breaks in the 10 years from 1999 to 2009, 16 for the next 10 years, 2010-2019, but in the last 3½ years, 2020 to 2023, 12 line breaks have already occurred. A very disturbing trend due to an aging system.
The following are some examples of recent line breaks and repairs:
The MUD 208 infrastructure consists of the follow components:
- 12 miles of water distribution lines ranging from 4” to 12” inches in diameter installed in 1986 to 1989
- 13 miles of sanitary sewer lines ranging from 8” to 18” inches in diameter installed in 1986 to 1989
- Water plant with 720,000 gallons of ground storage tank capacity, 2,400 gallons per minute pumping capacity, 2 deep water wells and standby power generator. The water plant was built in 1988
- Lift station for sanitary sewer waste built in 1985
- ~9.17% ownership in 4,600,000-gallon capacity sewage treatment plant built in 1978
- Provides Water and Sewer service to a population of 3,642 people daily through 1,213 connections to the infrastructure.
It can be noted from the above, the majority of the MUD’s infrastructure is approaching 40 years old. As with an aging house or a car, repairs and replacement of items are necessary to keep things running properly. The same is true for the MUD infrastructure – maintenance, rehabilitation and replacement is necessary to keep reliable water and sewer services available to our customers. Some of the recent and ongoing major rehabilitation/replacements include:
- Water Plant ground storage tank rehabilitation in 2018 costing $586,517
- Sanitary Sewer Line Rehabilitation in 2021 costing $205,617
- Sewage Treatment plant bar screen replacement in 2022 costing $222,936
- Lift Station Wet Well Rehabilitation in 2022 costing $244,530
- Water Plant MCC replacement in 2023 – 2024 with an estimated cost of $386,000
The MUD 208 Board of Directors is currently working with its engineers and operators looking at the water distribution system, evaluating past water line breaks commonalities to determine what areas in the distribution system may be more vulnerable to failure and what areas should be considered for proactive replacement to avoid unplanned water disruption to our customers in the future. This type of evaluation is also being done for equipment at the water plant and sewage treatment plant.
As can be seen by the costs above, rehabilitation and replacement of lines and equipment will be expensive. Two methods of funding are available to MUDs. It should be noted that funding for projects must be in the bank prior to bidding a project. The first funding method is authorization and issuance of bonds. Using this method, current and future residents share the debt burden which is spread over 25 to 30 years by incorporating it into the property tax rates. The second method is “Pay As You Go” in which the resident’s water bills are the primary funding source. With this method, water rates would increase in advance to fund each project which means the project debt burden falls on the current residents.
Once work scopes and estimated costs are determined, the Board will work with our financial advisor to determine the best, most cost-effective funding method to have the least impact to our customers.
Fire Hydrant Flushing – Wasting Water or Following Regulation?
Have you ever gone out for a mid-morning walk or drive in your neighborhood only to find water flowing out of a fire hydrant with the familiar H2O truck nearby? This can be a concerning sight for many as it appears significant amounts of water are flowing straight into the storm sewer unused and wasted. You may be surprised to learn this process, called flushing, is an integral part of water systems routine preventative maintenance required by the Texas Commission on Environmental Quality (TCEQ). This flushing maintains the integrity of the water system and allows us to continue delivery of the highest quality water possible to our customers.
What is flushing?
Flushing is a process that rapidly removes water from the District’s water piping system, similar to the process of flushing a car’s radiator. Flushing uses water force to scour out materials that accumulate in the District’s pipes. Water pipes are usually flushed by opening fire hydrants, where the discharged water flows off the streets the same as rainwater.
Why are we flushing?
Imagine driving down the road at less than 1-1/2 miles per hour. That’s about the rate that water moves through underground pipes. This slow movement causes sediment like rust and mineral particles to build up over time and accumulate along the pipe’s bottom. A build-up of bacteria known as “biofilm” can also coat the pipe’s inner surface. This combination of sediment and bacteria can restrict water flow in the pipes. Also, some areas of the water distribution system have dead ends or low flow segments where water remains in the pipe longer and may slightly reduce the chlorine disinfectant levels in the water. Periodic flushing of the water system removes the sediments from the lines and refreshes the water in the dead end, low flow segments of the system.
Isn’t flushing a waste of water?
No. Any overall increase in the amount of water used in flushing is a small price to pay in maintaining water quality and the integrity of the piping system.
How will this affect you?
Usually, you will not be aware that flushing is even taking place in your neighborhood. Flushing is generally conducted between 8 a.m. and 4 p.m. Monday through Friday. It takes about 30 minutes to flush each hydrant. While the hydrant is being flushed, the homes on that block may experience slight drop in water pressure. Your water service should not be interrupted. The only sign that flushing has occurred in your neighborhood may be standing water in the roadway.
Why Being On The Top Ten List Isn’t Always Good
If you receive a letter from Harris County MUD 208 and you are told you are one of the top 10 residential water users, it is not a good thing. It means your household is using well above the “normal” average household usage of water in our area. Just remember the average household’s “leaks” can account for more than 10,000 gallons of water wasted every year, or the amount needed to wash 270 loads of laundry. There are several things you can do to make certain you do not receive this letter.
- Check your sprinkler system to see if it needs to be repaired. Please physically check your sprinklers and make certain all heads are in working order and not watering the neighbor’s yard or the street.
- Place a drop of food coloring in the toilet tank. If the color shows up in the bowl within 15 minutes with-out flushing, you have a leak. Make sure to flush immediately after this experiment to avoid staining the tank.
- Keep your home leak-free by repairing dripping faucets, toilet flappers, and showerheads. In most cases, fixtures replacement parts don’t require a major investment.
- Don’t leave water running while you brush your teeth or shave.
- Don’t use water to do what can be done with a broom. Cleaning the driveway and sidewalk with a broom rather than a hose does the same thing, and usually takes less time.
- Keeping your yard green does not require that sprinkler to run for hours on end or daily for that matter. You just need 1″ a week for a healthy lawn. Irrigate your lawn deeply and infrequently. Turn off the system if we have had 1″ of rain that week.
- Wash only full loads of clothes.
- Install rain barrels or harvest rainwater for outdoor irrigation.
- Run your dishwasher with full loads only.
- Take shorter showers.
Basically, you don’t want to be on this list. Yes everyone for years has thought that water was always going to flow out of the faucet with just a simple twist of your hand. Luckily we are not living in California and yes we have had a wonderful, wet winter but we still need to always be mindful of our natural resources. We are just now experiencing a recovery from some of the worst droughts in Texas.