Louisville Water Company

South Shore, KY, United States

Louisville Water Company

South Shore, KY, United States
SEARCH FILTERS
Time filter
Source Type

TMG Consulting, a Gold level member of Oracle PartnerNetwork, today announced that it will support Louisville Water Company (Louisville Water), a key customer of the Oracle Utilities early adopter program with their implementation of Oracle Utilities...


Benotti M.J.,Southern Nevada Water Authority | Benotti M.J.,Batelle Memorial Institute | Song R.,Louisville Water Company | Wilson D.,330 McCulloch Blvd. N. | And 2 more authors.
Water Science and Technology: Water Supply | Year: 2012

Removal of a large suite of pharmaceuticals and endocrine disrupting compounds (EDCs) was measured through both pilot- and full-scale riverbank filtration (RBF) facilities. The pilot-scale RBF effectively reduced low ng/L concentrations of most compounds by greater than 90% following a 36-day experiment. Breakthrough of the conservative tracer occurred after 10 days and reached 90% recovery after 28 days. Only four compounds (diazepam, meprobamate, phenytoin and tris(2-chloroethyl) phosphate (TCEP)) were between 20 and 80% removed, and three compounds (atrazine, carbamazepine, and sulfamethoxazole) were less than 20% removed by the pilot. Removal of compounds through the pilot-scale RBF is consistent with results from two full-scale RBF systems: atrazine, carbamazepine, meprobamate, phenytoin and sulfamethoxazole persisted through infiltration into drinking water, whereas caffeine, DEET, gemfibrozil, ibuprofen, iopromide, TCEP, triclosan and trimethoprim were removed. Removal during RBF was attributed to (1) microbial degradation for compounds which were either negatively charged or were neutrally charged and had low log KOW values (such as acetaminophen, caffeine, and trimethoprim), or (2) adsorption for neutrally-charged compounds with high log KOW values (including estradiol, estrone, ethynylestradiol, fluoxetine, oxybenzone, progesterone, testosterone, and triclosan). © IWA Publishing 2012.


Williams A.F.,Louisville Water Company | Pike D.,Louisville Water Company | Gathof T.,Louisville Water Company
Pipelines 2015: Recent Advances in Underground Pipeline Engineering and Construction - Proceedings of the Pipelines 2015 Conference | Year: 2015

In 2009, a 60-inch (1500-mm) prestressed concrete cylinder pipe (PCCP) transmission main carrying potable water failed. This break and the hundreds of thousands of dollars in damages inflicted was the impetus for Louisville Water Company's (LWC) PCCP Condition Assessment Program. The program covering 105 miles (169 km) of PCCP pipe was approved as part of LWC's 2010 Capital Improvement Budget and contained two pilot projects that were selected. A 5.2-mile (8.4-km) section of 48-inch (1200-mm) pipe and an 11.5-mile (18.5-km) section of 60-inch (1500-mm) pipe were selected as the two pilot projects based on their perceived criticality, lack of redundancy, damage-causing capability, and the availability of electromagnetic inspection technology. These two projects were inspected with a variety of electromagnetic inspection platforms, high definition (HD) video, and acoustic leak detection technologies. The inspections identified several pipe sections that required a variety of testing, replacement, and rehabilitation options. LWC utilized multiple contractors to employ a variety of repair methods including external steel bands, external post-tensioning tendons, full joint replacement, internal carbon fiber-reinforced polymer (CFRP) linings, and internal hybrid fiber-reinforced polymer (FRP) linings. With the completion of both pilot projects, the paper will discuss all of the issues encountered, items that worked well and those that did not, a comparison of the multiple structural repair methods, data storage issues, LWC's future implementation of the program, and how the program best serves LWC's customers going forward. © 2015 ASCE.


Ball K.,Louisville Water Company
Journal - American Water Works Association | Year: 2012

Louisville Water Company (LWC) has launched an innovative riverbank filtration (RBF) project at Riverbank Filtration Tunnel and Pump Station that uses the earth as a natural filter. The utility commissioned the US Geologic Survey (USGS) to study the aquifer that runs parallel to the Ohio River and to determine the quantity and quality of the groundwater supply. A full-scale test with a demonstration collector well that would pump 15 mgd from the aquifer began operating in 1999. The demo well met and exceeded all water quality and quantity expectations, pumping an average of 17 mgd. The project also provided 60 mgd of riverbank-filtered water to the B.E. Payne Plant. The decision on the type of well to drill was based on the ease of making the connection to the tunnel. The design allowed the wells to be capped at ground level, eliminating any aboveground structures from having to be located along the river-bank.


Williams A.F.,Louisville Water Company | Coombs K.D.,Louisville Water Company
Pipelines 2013: Pipelines and Trenchless Construction and Renewals - A Global Perspective - Proceedings of the Pipelines 2013 Conference | Year: 2013

From 1992 until 2007, the Louisville Water Company (LWC) implemented an aggressive Main Replacement and Rehabilitation Program (MRRP) targeting approximately 500 miles of unlined cast iron pipe installed in LWC's system prior to 1931. With an annual budget between $8,000,000 and $10,000,000, cast iron pipes that were both structurally and hydraulically sound were cleaned and cement lined, and those that were not structurally sound or were hydraulically undersized were replaced. Following the completion of this targeted program in 2007, LWC has continued the MRRP with an annual budget of $5,000,000 targeting selected sections of lined cast iron pipe primarily for replacement. Selection criteria utilized included age, breaks, leaks, and main break frequency (MBF) as potential indicators of performance. LWC endeavored to find selection criteria that provided a more business-sense approach. The MBF has been a good standard measurement to compare breaks from one area or time period with another within LWC's system. It can also be utilized to compare against another water utility's performance, but it's not an indicator of how LWC is performing within an environment that speaks in dollars and cents. In selecting candidates, what level of MBF justifies the replacement of a pipe section? Because LWC is looking at a one-time capital cost for replacement in comparison to a series of recurring operations and maintenance costs for repairs, certain factors - including inflation, weighted cost of capital, service life, study life, and various other economic terms and calculations - need to be considered. In addition, the methodology employs "soft" data to "evaluate costs" of customer outages, traffic delays, criticality of pipe section, and likelihood of future failures. A Net Present Value (NPV) analysis is employed to examine a pipe section's candidacy for replacement. The paper discusses the background of LWC's original MRRP, previously utilized selection criteria, and details and illustrates how use of the NPV analysis has allowed the LWC's current MRRP to evolve and remain a prudent use of rate payer funds in an economically challenging business environment. © 2013 American Society of Civil Engineers.


Williams A.F.,Louisville Water Company
Pipelines 2016: Out of Sight, Out of Mind, Not Out of Risk - Proceedings of the Pipelines 2016 Conference | Year: 2016

In 2012, the Louisville Water Company (LWC) formulated and approved a capital improvement plan (CIP) to provide redundancy to the Cities of Prospect and Goshen in its eastern extended service area. The City of Prospect was on the eastern boundary of LWC's service area, and LWC acquired the Goshen Utilities service area in 2002. Goshen had been one of LWC's wholesale customers. This area of the system has grown since the acquisition and, with its expanding high-end residential contingent, has large irrigation demands. The implementation of the capital improvement work was progressing at a slow pace due to other pressing needs in the service area. In 2014, the primary 12-inch water main carrying potable water into the Goshen system failed. The location and depth of this break intensified the effects within the system. As LWC raced to find a way to reroute the supply into the system, management watched as tank levels dropped and boil water advisories were issued. This paper will discuss issues encountered, actions and quick thinking by LWC personnel to avoid complete loss of service, and the capital improvements that were implemented to prevent an issue of this magnitude in the future. © 2016 ASCE.


Williams A.F.,Louisville Water Company | Pruitt E.R.,Louisville Water Company | Livermore M.J.,Pure Technologies
Pipelines 2012: Innovations in Design, Construction, Operations, and Maintenance - Doing More with Less - Proceedings of the Pipelines 2012 Conference | Year: 2012

On May 13, 2009, a 60-inch prestressed concrete cylinder pipe (PCCP) transmission main carrying potable water failed. Customers in the area experienced low pressure or no water. The break quickly poured out millions of gallons of potable water on to the ground flowing downhill and inflicting thousands of dollars of damage to the adjacent properties. Many of Louisville Water Company's (LWC) large diameter PCCP mains do not have redundant feeds. Instead of relying on the wait-and-see approach on these critical transmission mains, LWC chose to be proactive and create a condition assessment program for this class of pipe. The original 10-year $18.6 million program covering 105 miles of PCCP pipe was approved as part of LWC's 2010 Capital Improvement Budget. The program was initiated with two pilot projects before implementing the final 25 projects. The pilot projects were selected by management based on criticality, redundancy, the ability to take out of service, potential damages if failure occurs, and the availability of technology. During the design and implementation of the pilot projects, issues were encountered in creation of specifications, suitability of repair materials, the proper way to set up the projects to ensure competitive bidding, how to best address identified damaged pipe sections in a timely manner, and many others. Following the pilot implementation, the program was recalculated based on costs obtained from the bidding of the two projects and lengthened to include two 10-year inspection cycles. The proactive identification and repair of damaged sections has allowed LWC to optimize rate-payer funds while gaining positive publicity. © 2012 American Society of Civil Engineering.


Williams A.F.,Louisville Water Company | Pruitt E.R.,Louisville Water Company | Livermore M.J.,Pure Technologies
Pipelines 2012: Innovations in Design, Construction, Operations, and Maintenance - Doing More with Less - Proceedings of the Pipelines 2012 Conference | Year: 2012

The 11.53 miles of 60-inch prestressed concrete cylinder pipe (PCCP) main between the B.E. Payne Water Treatment Plant and the English Station 10 MG Ground Storage Tank serves as the primary supply main for approximately 300,000 customers. In May 2009, the 60-inch main ruptured causing a boil water advisory for approximately 23,000 customers. Fortunately for the Louisville Water Company (LWC), the rupture occurred on a section of the main that had a redundant feed. Approximately 8.80 miles of the 60-inch main has no redundant feed. This pipeline was identified as one of LWC's pilot projects for its newly created PCCP Condition Assessment Program. LWC's PCCP Condition Assessment Program standardized on the Electromagnetic Inspection technology for locating damaged prestressing wires as the primary condition assessment methodology. LWC contracted with Pure Technologies (Pure). The operating constraints of the 60-inch main allowed LWC to utilize several of Pure's technology platforms for out-of-service and in-service inspections. Following receipt of the initial inspection results from Pure and a failure risk analysis, LWC identified 11 pipe segments requiring rehabilitation. Three of the sections were designated beyond the point of failure. The emergency repairs on these sections were immediately implemented. The remaining 8 sections were scheduled for repair at later date. This paper discusses the challenges and intricacies with managing the operations of a primary supply line with multiple inspection cycles, rehabilitating the dilapidated appurtenances, draining and filling sections of the main multiple times, repairing the damaged sections in areas where the main has never been out-of-service, and obtaining the buy-in from upper management to do the work. © 2012 American Society of Civil Engineering.


Trademark
Louisville Water Company | Date: 2012-05-08

note cards; posters. bottles, sold empty; cups; drinking glasses. clothing, namely, shirts, jackets, sweatshirts, t-shirts, caps, visors and vests; headwear.


Trademark
Louisville Water Company | Date: 2011-09-06

drinking water.

Loading Louisville Water Company collaborators
Loading Louisville Water Company collaborators