Inflow and Infiltration (I&I)

pano of the Rivanna River January 10, the left side of frame is looking downstream toward Monticello, the right side of frame is the view upstream.

(if the photo is too small there is video)

7. Since 2006, RWSA, the City, and ACSA have worked together to conduct flow studies, analyze flow data, assess wet weather limitations, calibrate a transmission system computer model, forecast future dry weather flows through land development projections and identify inflow and infiltration reduction goals across all sewer collection systems connected to the Facility. The goal of these projects is to assure adequate capacity in the transmission and treatment systems with emphasis on addressing unpermitted discharges. The three entities are working cooperatively to upgrade their respective sewer collection systems.

Sat, Jan 15, 2011 at 5:53 PM To: Council
Cc: tfrederick@rivanna.org

Dear Councilors,

December 8, during RWSA’s presentation on the Rivanna Pumping Station, I asked Mr. Frederick how much it would cost to repair the inflow and infiltration problems that affect our waste water system (by system I meant all waste water pipes that connect to RWSA’s waste-water treatment plants).

As I understood his response, to get to the optimal industry standard practices fix of our waste water system would cost $400 million, this is the fix where there is still I&I but it is substantially reduced. To actually fix the pipes (make them water-tight, no one does this), would cost around two billion dollars.

Rivanna runs a system, hydration and sanitation. Alas, I can’t think of an apt analogy. My not so accurate way of thinking of it…

“It is like a car. The input side, the water supply, is the gas. Water supply speeds up the economy, we can hook up houses, hook up businesses. The safety side, the sanitation, is like the brakes. The waste-water (output) side must collect and treat the effluent from these houses and businesses.”

Our region has spent a great deal of time/money studying the input side. It is my impression that we have spent less time studying the output side. If I understood Mr. Frederick correctly, a detailed study of the waste-water side would take ten years to perform. The RWSA board in the past (2005) approved an evaluation of the waste-water side, but it’s my impression that that evaluation was not equal to a detailed study.

To me, it makes sense to repair the sanitation side in lock-step with increases on the water-supply side, like balancing a budget. Hope this will happen as we move forward.

Does the 25% I&I reduction by 2020 to which we (RWSA, ACSA, CHO Public Works) have committed achieve that balance?

Thanks,

Bill Emory Charlottesville VA 22902

Draft Zoning Ordinance

Green energ hq downtown
Charlottesville is riding the zoning wave.

The implementation of the draft zoning ordinance will further decrease the City’s shrinking tree canopy. How low can the canopy percentage go? The code writers say we can’t ask developers for more than 20% canopy coverage, the State’s maximum requirement.
But developers and landlords can be incentivized,
the code’s green-scape zones and setbacks can be adjusted
and we can ask our City Councilors to join us in this goal.
Look at the money. The City takes in 100 million in real estate tax, the city spends one thousandth of that planting trees.
We talk the green City talk, let’s start walking the walk.
Trees and density can coexist, you just act. Plant a $10 tree in the ground, care for it, and step back.
1975 street tree plan
1975 street tree plan

In 1975 the City had a plan to plant a multitude of trees in the commons, in the right of way. In the Woolen Mills 90 trees would line East Market Street from Firefly to the Rivanna. Shade, walkability, habitat, carbon sequestration, oxygen production, stormwater control! Of the 90 trees, one has been planted at 1606 E Market.
Square that lack of follow through with the Standards and Design Manual chapter 9.6.4 which reads

“Trees must be installed along all rights-of-way regardless of location of overhead or underground utilities.”

Ask the City to plant the commons and to support designs that incorporate nature in housing plans.
I am a small scale, affordable housing provider going for 100% canopy.
We can get this done.

In the words of Wangari Muta Maathai:

“We need to promote development that does not destroy our environment.”
“Until you dig a hole, you plant a tree, you water it and make it survive, you haven’t done a thing. You are just talking.”

stony prominence

power plant
The story of Charlottesville’s most famous mill complex is also the tale of a section of Albemarle County, specifically the plot of land approximately one mile east of Charlottesville’s original downtown. “At that point,” wrote Harry E. Poindexter, “Moore’s Creek empties into the [Rivanna] river from the southwest, forming a narrow triangle of land which rises rapidly to a rocky crest some one hundred feet high.”– Britton

3. Community Meeting – ZMA 202200013 Power Plant Residences
PROJECT: ZMA202200013 Power Plant Residences
MAGISTERIAL DISTRICT: Scottsville
TAX MAP/PARCEL(S): 07800-00-00-021B1
LOCATION: South side of E. Market Street, approximately 60 linear feet southeast of the municipal boundary between the City of Charlottesville and Albemarle County, VA
PETITION: Rezone 0.61 acres of Preserved Steep Slopes Overlay Zoning District to Managed Steep Slopes Overlay District on TMP 07800-00-00-021B1. No changes to the underlying primary R4 Zoning District are proposed with this application.

5th & Avon Community Advisory Committee

Date: 05/18/2023 7:00 PM – 8:30 PM
Location: 5th Street County Office Building, Room B
1600 5th Street Ext
Charlottesville, Virginia 22902

Application materials available

Eminent Domain

3 dogs
I asked Council to seize 21 acres in the floodplain of the Rivanna River, to provide the current owner of the property with just compensation, and create another river park. In the alternative there will be a 15 foot flood wall that blocks access from neighborhoods to the river, a 2 acre parking lot and 245 apartment units.

“that sort of burst on us about a week ago”

(audio from 3 of 5 councilors below.)

Europeans and their plants

smith lane gauntlet
English ivy, english privet, tree of heaven, japanese honeysuckle. Native plants displaced.
military woods
This is an artificial landscape, triangular planting of trees, 99% resident in the Tidewater. Waiting for the canopy to close then will work on understory…