Washington, D.C
Potomac sewage spill: Repairs to take weeks longer after large rocks found in pipe
The blockage inside the collapsed sewer line that sent hundreds of millions of gallons of sewage into the Potomac River is worse than previously thought, and it’s going to take weeks longer to repair, DC Water officials said.
It will likely take an additional four to six weeks to get a system in place to safely remove large rocks and boulders crews found inside the sewer line during an overnight inspection, DC Water said in an update early Friday morning.
“Standard cleaning methods using industrial vacuums and jets are not sufficient to remove these large boulders,” DC Water said. “Addressing this blockage will require both larger machinery and manual labor. Workers will need to safely enter the pipe, use slings to maneuver around the rocks, and then rely on heavy equipment to extract each boulder, making removal a complex and highly specialized operation.”
DC Water DC Water
The “large rock dam” stretches about 30 feet downstream of the original pipe collapse, the agency said.
According to DC Water, the rocks were likely excavated during the pipe’s construction in the 1960s and used as backfill. When the pipe failure happened last month, the rocks were drawn in by the force of the wastewater flow.
Then, as the surrounding material eroded into the sinkhole created by the collapse, extra rocks and soil accumulated and filled the pipe, helping create the rock dam.
DC Water said its bypass pump system near the spill has mostly contained the overflow of wastewater, but hasn’t stopped it. Reducing the flow of water through the pipe further means adding more of those pumps, DC Water said.
University of Maryland researchers say the spill spewed harmful bacteria as far as 10 miles downstream from the sewage overflow site.
The bacteria now in the Potomac River water, according to those UMD researchers, includes E. coli, the bacteria behind Staph infections and the antibiotic-resistant form of Staph known as MRSA.
To make matters worse, the cold water and outdoor temperatures are acting like a refrigerator, keeping the bacteria alive for longer as it travels downstream.
News4 Meteorologist Ryan Miller explained how the colder temperatures may be slowing the natural cleansing of the river from the spill.
“The water temperature right now is 39 degrees,” Miller told News4’s Mark Segraves. “That’s refrigerator temperature water. And that water will help to slow the growth of the bacteria, prevent the die-off, a massive die-off of the bacteria. So from that standpoint, the cold water can actually help transport further distances some of the pathogens.”
UMD officials urged anyone who comes in contact with the water to get tested.
DC Water is also conducting water quality sampling at multiple locations to check for E. coli bacteria, and also found elevated levels after the spill.
The spill took place below the point in the river where D.C.’s drinking water comes from, which means the D.C. water supply has not been impacted and is safe, according to DC Water.
It’s been more than two weeks since the sewer pipe collapsed on Jan. 19, causing 300 million gallons of sewage and wastewater to flow into the Potomac River.
4 things to know about the weather:
- So Many Clouds
- Not Too Much Rain
- Milder For The Weekend
- Warmer Days Next Week
The dividing line between the 50s and the 70s is a cold front that has been wedged right down into our area by high pressure anchored over New England. East winds will bring our air off the ocean and Bay and both of those bodies of water are COLD this time of year.
Afternoon highs will stay in the 40s near the Bay, should reach the low/mid 50s near DC and could be near 60° west of Fredericksburg.
Very little sunshine today but not too much of a rain chance. Clouds, fog and 40s for all tonight.
Download the NBC Washington app on iOS and Android to check the weather radar on the go.
A developing storm over the Ohio Valley will finally begin to push that high pressure away tomorrow. Our afternoon highs will be dependent on how soon our wind can turn around to the Southwest.
Plan for a cloudy and chilly Saturday morning with a big jump in temperatures by mid-afternoon. Northern and Northeastern Maryland will remain cooler, but the rest of the area should pop above 70° for the first time this year.
The aforementioned storm will send a front through our area Saturday night. That front will bring a round of showers along with it. Showers will be likely Saturday evening and night.
The majority of that rain chance will be ending before noon on Sunday and the return of a little sun on Sunday afternoon should warm most areas to near 70° once again.
The first few days of next week will feel more like May than March. Highs on Monday should be near 75° and both Tuesday and Wednesday could top 80°. That warm pattern won’t last long, but it sure will feel good.
QuickCast
TODAY:
Mostly Cloudy
Coolest Along, East Of I-95
Isolated Showers
Wind: East 5-15 mph
Chance of Rain: 20%
HIGHS: 48° to 62°
TONIGHT:
Cloudy And Damp
Isolated Showers
Areas Of Fog
Wind: East 5-10 mph
Chance Of Rain: 20%
LOWS: 40° to 45°
SATURDAY:
Partly To Mostly Cloudy
Breezy And Warmer
Isolated Showers
Wind: Southwest 10-20 mph
Chance of Rain: 20%
HIGHS: 65° to 75°
SUNDAY:
Partly Sunny
AM: Showers Likely
PM: Dry For Most
Wind: Northwest 5-15 mph
Chance of Rain: 40%
HIGHS: 64° to 72°
MONDAY:
Sun And Clouds
Nice And Mild
Light Breeze
Wind: Variable 5 mph
Chance of Rain: 0%
HIGHS: 66° to 72°
Sunrise: 6:33 Sunset: 6:06
Average High: 53° Average Low: 36°
Stay with Storm Team4 for the latest forecast. Download the NBC Washington app on iOS and Android to get severe weather alerts on your phone.
4 things to know about the weather:
- Grab the umbrella
- Big temperature ranges
- Thunder possible Thursday night
- Warmer days on the way
Heads up commuters! For Thursday morning, there will be some thick fog in spots with some rain possible, especially around the Mason-Dixon line. The fog should clear out by 10 a.m.
Throughout the day, some sunshine should develop with highs warming into the low 60s. Those in Northern Maryland could see some showers throughout the day but those near the D.C. area will stay relatively dry except for a stray shower or two.
Some rain and evening storms by 8 p.m. will impact the area Thursday night. Although it’s a bit unusual for this time of year, don’t be surprised if you hear thunder Thursday evening.
Warmer temperatures coming this weekend
These next few days will come with some major forecast challenges.
Much, much warmer air is just to our south and cold, high pressure is moving into New England. The front separating the 40s from the 70s will be laying right across our region for the next two to three days.
So keep in mind, when you’re looking at the forecast highs in the text below, that it will be warmest in Fredericksburg, VA and coolest in northern Maryland.
Friday’s weather will be similar as a front system remains just over the area, separating chilly air to the north and warmer air to the south. There might be a stray shower or two, too.
For the weekend, Saturday looks to be the warmer of the two days with highs in the low to mid 70s. Some rain overnight Saturday will lead to cooler temperatures on Sunday.
Download the NBC Washington app on iOS and Android to check the weather radar on the go.
QuickCast
THURSDAY:
Mostly Cloudy
Stray Shower Possible
Big Temperature Range
Wind: Southeast 5 mph
Chance of Rain: 40%
HIGHS: 62° to 72°
THURSDAY NIGHT:
Cloudy And Chilly
Rain Likely
Some Thunder Possible
Wind: Northeast 5 mph
Chance Of Rain: 70%
LOWS: 44° to 54°
FRIDAY:
Mostly Cloudy
Cooler For Most
Isolated Shower Or Two
Wind: East 5-15 mph
Chance of Rain: 20%
HIGHS: 52° to 68°
SATURDAY:
Partly Sunny
Breezy And Warmer
Isolated Shower
Wind: Southwest 10-20 mph
Chance of Rain: 20%
HIGHS: 66° to 78°
SUNDAY:
Mostly Cloudy
Cooler
Few Showers Possible
Wind: Northwest 5-15 mph
Chance of Rain: 20%
HIGHS: 64° to 72°
Sunrise: 6:35 Sunset: 6:05
Average High: 53° Average Low: 36°
Stay with Storm Team4 for the latest forecast. Download the NBC Washington app on iOS and Android to get severe weather alerts on your phone.
WASHINGTON (7News) — D.C. taxpayers may be confused by back-and-forth between the D.C. City Council and Congress over taxprovision. The city’s financial officer sent a letter to Mayor Muriel Bowser and D.C. Council Chair Phil Mendelson, that said the District’s tax laws will not change, despite recent actions by Congress.
7News spoke to director of Tax Policy at the Center for American Progress Corey Husak to explain the complicated tax policy.
“The short answer is, nothing changes. Filing Season can continue as it has been, continue as planned, and according to the laws as we understood them in January,” said Husak.
“If you’ve already filed your taxes, you don’t have to change anything. And if you want to file your taxes, the rules are still the same as they were on the books before,” said Husak.
RELATED | DC Council Chairman talks taxes, budget, bodycams, federal surge
Chief Financial Officer Glen Lee’s revenue estimate issued Friday does not include an estimated $180 million expected this fiscal year from the city’s decoupling law, “due to the uncertainty of the associated revenue as a result of Joint Resolution 142,” according to a released letter.
“The CFO was in a tough spot here. If he agreed with Congress, then businesses and overtime workers will get bigger refunds. But if he agreed with the Mayor and the Attorney General, then families with children and lower income workers would get bigger tax cuts,” said Husak.
SEE MORE | Development of new Commanders stadium scrutinized at DC oversight hearing
“We as District residents can’t control, you know what happens in the courts, what happens in, you know, what Congress does in the future,” said Husak. “But for now, the CFO has said, you know this is, this is a law as it stands, and the law that I’m going to enforce so, you know, file your legally obligated taxes, and maybe in the future, there’ll be a surprise.”
WATCH THE FULL INTERVIEW
7News spoke to director of Tax Policy at the Center for American Progress Corey Husak to explain the complicated tax policy (7News).{ }
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