Lake Conroe flood gates

SJRA Appoints Aubrey Spear New General Manager

November 15, 2023 – The San Jacinto River Authority (SJRA) Board of Directors announced today the selection of Aubrey A. Spear, PE, as general manager.

Aubrey Spear

Duties

As general manager, Spear will oversee the development and implementation of SJRA’s vision, mission and strategic goals through the collaboration with the SJRA’s Operating Divisions: General and Administrative Services, Lake Conroe, Woodlands, Groundwater Reduction Plan, Highlands, and Flood Management. In addition to providing managerial oversight, Spear will be instrumental in overseeing the development and execution of capital improvement plans, planning, external affairs, leadership development, and budget.

SJRA Board President Ronnie Anderson expressed confidence in Aubrey Spear’s arrival saying, “After a thorough search, the SJRA Board of Directors is proud to welcome Aubrey to SJRA. Aubrey’s extensive experience in water utility management, water and wastewater infrastructure projects, and stakeholder relationships make him a great fit for our team.”

Goals

“I am excited to join the dedicated team at SJRA,” said Spear. “I look forward to collaborating with key stakeholders including employees, customers, and elected officials to determine major areas of focus for the Authority moving forward. I am passionate about implementing the river authority’s vision to provide reliable, cost-efficient, and sustainable water resource management that supports the significant growth in the region while earning the trust and confidence of our customers and community.” 

Background

Aubrey Spear brings extensive professional leadership and managerial experience to SJRA. He served the City of Lubbock in a senior management role as Director of Water Utilities for 16 years leading the city’s Water Utilities Department of more than 200 employees. Additionally, he served as liaison to multiple water boards including the Lubbock Water Advisory Commission, Canadian River Municipal Water Authority, High Plains Underground Water Conservation District and served as the chairperson of the Region O Water Planning Group and on the executive committee of the Upper Brazos Regional Flood Planning Group. 

Spear has also guided public relations, marketing, and customer service activities and facilitated major projects including the city of Lubbock’s first new surface water supply reservoir in more than 25 years, Lake Alan Henry. 

Spear will start with SJRA in January 2024.

Challenges

Aubrey Spear’s appointment comes almost six months after Jace Houston resigned from SJRA at the end of May 2023.

After 16 years with the SJRA, Houston had become the focus of criticism over a groundwater reduction plan designed to reduce subsidence and ensure the water future of Montgomery County. Houston had led the conversion from dwindling groundwater to surface water. That included construction of a water treatment plant at Lake Conroe and several water distribution pipelines.

However, several signatories to the Groundwater Reduction Plan eventually balked at higher prices despite the reduction in subsidence. Conroe state representative Will Metcalf proposed an amendment to the SJRA’s sunset review bill that would have ousted Houston had the state senate supported it.

As Spear prepares to navigate new waters in SE Texas, he will be forced to thread a needle between downstream and upstream interests.

Memories of the SJRA’s role in downstream flooding during Harvey when it released 79,000 cubic feet per second from Lake Conroe will constrain him. So will the reluctance of Lake Conroe residents to live with seasonally lower lake levels. Lake lowering didn’t generate much controversy this year. Because of drought, lake lowering wasn’t necessary.

However, it could in the future if the project to add more flood gates to Lake Houston ever gets off the drawing boards.

Posted by Bob Rehak on 11/15/23 based in part on a press release from SJRA

2269 days since Hurricane Harvey

Confluence of West Fork withy Spring Creek on 11/11/23

West Fork Sludge Fest

The San Jacinto West Fork has turned into a sludge fest again. I took the picture below on 11/11/23. Not since the day that the West Fork turned white have I seen the contrast so dramatic at the confluence with Spring Creek.

This image has an empty alt attribute; its file name is 20231111-DJI_0872-1024x682.jpg
Looking NW from over US59 Bridge. Confluence of Spring Creek (left) and San Jacinto West Fork (right). Cypress Creek joins Spring Creek 2.7 miles west of this location.

In that prior case, the cause was obvious. Two sand mines were discharging process wastewater into the West Fork. The TCEQ determined that one, the Liberty Materials mine, dumped 56 million gallons of white sludge into the river.

This time, the cause is not so obvious. I can’t even be certain I determined the cause. After taking the photo above, I spent a whole day ruling out various possibilities while searching for others.

Ruling Out Causes

The dramatic difference was not caused by huge variation in rainfall totals across the region.

Rainfall totals from Harris County flood warning system. All of the rain fell in the previous 2.5 days and was relatively spread out.

The highest total on the West Fork was that 2.68 inches south of Conroe at SH242. Further investigation showed that 1 inch fell between 3 and 4PM on 11/09/23. That was the highest intensity at that gage in more than a month.

Uneven soil saturation across the region would also not cause the zebra pattern in the river. The entire region is still rated either “abnormally dry” or in “moderate drought.”

And Lake Conroe did not release any large volumes of water lately that would have scoured river banks. That eliminated another potential cause.

Now here’s where it gets really baffling.

SJRA Study Claims Most Sediment Comes from Spring/Cypress Creeks

The San Jacinto River Basin Master Drainage Study by Freese & Nichols claims that more sediment comes down Spring and Cypress Creeks than the West Fork.

In fact, they say, of all the sediment coming into Lake Houston, two thirds comes from Spring and Cypress Creeks while only 13% comes from the West Fork upstream of US59. So where is all the sludge coming from?

In my opinion, it most likely came from new developments or sand mines that move large volumes of loose sediment.

So the next day, I went out with my drone and found several possibilities.

Possible Sources for Sediment Pollution

Two sand mines had pits open to the river, but I did not see large volumes of sediment oozing out of them as I sometimes do.

The most interesting possibility: new developments very near that gage on SH242 that read 2.68 inches.

Two connected developments straddle FM1314 immediately north of SH242. Early plans called them both Mavera. But now, the one on the east has a sign that says Madera. The sign on the west section calls it Evergreen.

Both are being built on top of wetlands in a 10-year flood zone. Together, they have roughly 1400 acres of exposed soil.

Most of the development’s stormwater drains into Crystal Creek and then into the West Fork about a half mile downstream from where I took this photo.

Sediment-laden stormwater burst through the wall of this detention basin.
Enlarged detail from shot above shows water was strong enough to destroy the outfall pipe.

Now let’s see what’s upstream from this breach.

Evergreen drainage channel. Water flows toward camera and the breached detention basin.
Even farther up the channel. Note all recently exposed sediment.

The ditch above appears to be much wider than it was in January 2021, almost three years ago. Now, let’s jump back south to where this area drains into the West Fork.

Crystal Creek (middle) empties into the West Fork (bottom left). Note how milky water from Crystal compares to the West Fork.

Note that the picture above was taken two days after the heaviest recent rainfall, so the volume may not seem impressive.

There likely were other areas along the West Fork that contributed to the sedimentation you saw in the first photo at the top of this post. But I was not in a helicopter and it’s virtually impossible to cover the entire river with a drone. So I can’t say for sure.

How to Report Issues You May See

This is not the first time I have documented excessive sediment coming off the West Fork.

The zebra effect at the confluence is common.

The angle of the shots above varies. But in each instance, the West Fork is the most polluted branch.

Why is sediment so concerning? After all, it’s natural, right?

Remember the mouth bar that virtually blocked off the West Fork after Harvey? Also the one on the East Fork?

When sediment reduces the conveyance of rivers, they come out of their banks faster and higher on smaller rainfalls. The rivers flood more frequently and increase your flood risk.

So, if you see unnatural situations in rivers or streams, make sure you report them to the TCEQ, which investigates such matters.

Together, we may be able to improve our safety and water quality.

Posted by Bob Rehak on 11/13/2023

2267 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.

Northpark South

Northpark South Starts Clearing Wetlands, Floodplain

Colorado-based Century Land Holdings of Texas, LLC has started clearing land for Northpark South in Porter along the West Fork of the San Jacinto River at the west end of Northpark Drive.

Documents from the Houston Planning Commission, USGS, and FEMA; eyewitness accounts from nearby residents and flood professionals; and aerial photos indicate:

  • Most of the area is in floodplains defined decades ago and not updated since.
  • The entire area – and then some – went underwater during Harvey.
  • The entrance to the property near Northpark Drive and Sorters-McClellan Road sits in a bowl that rescue trucks could not get through during Harvey. That would make evacuation difficult in the event of another large flood.
  • Wetlands dot the property.
  • Abandoned sand mines may pose safety threats.

The same developer just completed a sister development called Northpark Woods across a drainage channel from this one. But so far, the gutsy developer has avoided any consequences for its risky gamble thanks in large part to a multi-year drought and interminable delays at FEMA releasing the new post-Harvey flood maps.

All Underwater During Harvey

Eyewitness accounts and damage reports indicate that Harvey floodwaters stretched about a third of a mile east of Sorters-McClellan to Northpark and Kingwood Place Drive. That’s on the high side of Sorters-McClellan; the new development will be on the low side.

Floodwaters in this area stopped at about 83 feet above sea level. However, the entrance to the new subdivision is at 75 feet, according to the USGS National Map. That means the water was an estimated 8 feet deep at the entrance.

One long-time resident in the area said, “The intersection of Sorters and Northpark sits in a bowl. It was not passable by Montgomery County Precinct 4 constables in an Army deuce and a half [used for high-water rescue]. Water from the river came right up past that intersection and continued up Northpark to just past the intersection of Kingwood Place Dr.”

Also on the high side of Sorters-McClellan, six of nine buildings at nearby Kingwood College flooded during Harvey. Restoration cost: $60 million!

And then there’s Tammy Gunnels‘ former home a quarter mile south of the new development. It flooded 13 times in 11 years and had to be bought out by Montgomery County and FEMA.

Documents obtained from the Houston Planning Commission indicate that RG Miller is the engineer of record for Northpark South.

Bordering River and Sand Mines

During Harvey, 160,000 cubic feet per second rampaged down the West Fork behind this property.

Looking west past Sorters-McClellan Road toward what will become Northpark South. Note clearing starting in the middle in what used to be wetlands (see below).
From the National Wetlands Inventory. Dark green area on right corresponds to cleared area above.
Looking NW. Intersection of Northpark and Sorters-McClellan in lower left. Another subdivision called Northpark Woods by the same developer is in the upper right. West Fork San Jacinto and sand mines at top of frame.

Here’s what they hope to build on this property.

General plan submitted to Houston Planning Commission in 2021.

Current Floodplains Will Soon Expand

Most of the property already sits in floodway or floodplains. But the FEMA map below has not yet been updated to reflect new knowledge gained as a result of Memorial Day, Tax Day, Harvey and Imelda floods.

In fact, the 2014 date on the map below is misleading. It reflects an update of the base map, but the data that determines the extent of floodplains has not been updated since the 1980s, according to an expert familiar with Montgomery County flood maps.

From FEMA’s National Flood Hazard Layer Viewer.

FEMA and Harris County Flood Control have warned people that when new “post-Harvey” flood maps are released in the next year or two, floodplains will expand 50-100%. The floodway (striped area above) will likely expand into the 100-year floodplain (aqua). In turn, the 100-year will expand into the 500-year (tan). And the 500-year floodplain will extend past any of the colored areas.

That’s consistent with eyewitness accounts. And that could potentially put the entire property in floodplains.

Taking Advantage of Map-Update Window

The developer seems to be taking advantage of a window between post-Harvey flood surveys and release of the new maps.

I’m sure the developer’s lawyers would argue that they are complying with all current, applicable laws. But an ethical question arises. Will the new development expose unsuspecting homebuyers to greater-than-expected risk?

If so, why aren’t officials pushing to update maps and floodplain regs faster?

Could some officials be prioritizing economic development now over public safety later?

Certainly not all are. But many flood professionals worry about that.

Next to 5-Square Miles of Sand Mines

The new development sits next to the largest sand-mining complex on the San Jacinto West Fork. Sand mines in this area occupy almost five square miles. However, not all the mines are active. But they still show signs of heavy sediment pollution.

Looking E toward Sorters-McClellan from over West Fork. Northpark South is at top of frame beyond the sand pits.
The operator of this mine decided not to fish its equipment out when they abandoned the site.
More colors than Crayola. No telling what’s growing in these ponds.

Will routing drainage from Northpark South through these sand mines pose a safety risk for people downstream?

Will it be safe for kids to play or fish near these steep-sided pits?

Floodplain Development Called New Form of Redlining

This is an example of why the population of Texas floodplains is greater than the populations of 30 entire states. Yep. Thirty entire states have populations smaller than that of Texas floodplains.

One former floodplain administrator, who requested to remain anonymous, characterized these types of developments as a new form of redlining.

More than a few floodplain and wetland developers target minorities who may not fully understand the flood risk.

Owner financing often accompanies floodplain developments. Such financing can bypass many flood-risk detection procedures that accompany traditional bank financing.

Then, when floods come, the people who can least afford to repair homes suffer the most and longest. Neighborhoods decay faster. And that makes it harder for people to recover their investments.

Years later, the public is left holding the bag. We are asked to fund expensive flood-mitigation projects that would not be necessary had the developer built in a safer area.

Posted by Bob Rehak on 11/11/2023

2265 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.