This seasonal variation is the primary indicator of microbial activity within a wastewater collection system
What is temperature
The T is Lake T stands for
What is Tecumseh
This is HRSD's confined space entry limit for H2S
What is 10PPM
The amount of UST sites HRSD has
What is 52
Who Grace dressed up as last year for Halloween
Who is Brennan Huff (Step Brothers)
This is the tendency of a substance to vaporize or release from a solution at normal temperatures and pressures
What is Volatility
This is prevented from transferring from Lake T to Scopus Creek due to the weir
What is Sediment
This corrosive acid is created when H2S mixes with moisture
What is Sulfuric Acid
The frequency of UST walk through inspections
What is monthly
This project takes place in both the Stormwater and Special projects sections
What are SBR's
This gas is the primary analyte of concern for North Ave PS OCS and is more than 28 times more potent than carbon dioxide as a greenhouse gas
What is Methane
A common crustacean that showed up in Lake T after the implementation of the weir
What is Blue Crab
This odor analyzing device sends electrical current across a gold film sensor to quantify H2S concentration in the air
What is JEROME
The rough amount of UST releases the U.S. EPA counts as of March 2024
What is 575,000
The amount of academic partners SP-GW-Air works with
What is 5
(University of Arizona, Purdue University, Virginia Tech, Penn State, VIMS)
This is the maximum draft of North Ave PS OCS
What is 1.13 miles
This may be present in Lake T preventing anchoring and disturbing the bottom
What is Munitions
This is the number of pump stations with an OCS that are projected to come online within the next 2 years
What is 6
The amount of hours of operation an emergency generator can acquire before a visual emissions observation is required
What is 500 hours
The amount of research partners that SP-GW-Air works with
What is 7
(Material Matters, USGS, Black and Veatch, Brown and Caldwell, Veolia, PARML, ERP)
This is the total number of structures investigated for draft extent of North Ave OCS
What is 55
This category of flora has increased by 69% since the construction of the weir
What is Submerged Aquatic Vegetation (SAV)
This brand of fertilizer is combined with water to create the nutrient flow for bio-OCS systems (bridge Street PS)
What is Miracle Grow
The amount of baseline groundwater sampling events per James River Cluster Well that were required prior to James River going into full scale recharge
What is 4
(there are 8 cluster wells, making it 32 events total)
The amount of projects that SP-GW-Air regularly works on
What is 29