Public Works Tenders 2019Public Meeting on Ottawa River Water Levels and Spring 2019 Flooding to be held on Saturday June 22, 2019Notice of Construction: HWY 148 CPR Overhead Bridge RemovalRequest for Proposal - Operational ReviewMedia Advisory - Algonquin Trail SurveyNotice of Application for Minor Variance File No. MV2019-01 and June 18, 2019 Public MeetingINFORMATION FOR LAURENTIAN VALLEY RESIDENTS ALONG THE OTTAWA RIVER - PROJECTED WATER LEVEL RATE OF DECREASE INFORMATION AS OF 5 PM JUNE 6, 2019Thank You! To All Who Assisted the Township with the 2019 Flooding EventFLOOD IMPACTED RESIDENTS AND PROPERTY OWNERS ARE REQUESTED TO REGISTER TO ASSIST THE TOWNSHIP WITH NEEDS ASSESSMENT FOR WHERE HELP IS REQUIRED WITH FLOOD CLEAN-UPOttawa River boating ban lifted on May 30 2019 by the Federal Minister of Transporation in sections near Laurentian Valley and other areasNotice of Application of Zoning By-law Amendment File No. Z2019-03 and Public Meeting of June 18, 2019News Release - IMPORTANT INFORMATION FOR FLOOD IMPACTED RESIDENTS AND PROPERTY OWNERS ON REGISTRATION FOR ASSISTANCECleanup Kits from the Red Cross Available for Laurentian Valley Residents Impacted by FloodingAttention Business Owners! Sign up for our Business StudyVolunteer with the Township of Laurentian ValleyOpen Air & Recreational Fire Ban LiftedPUBLIC NOTICE - FLOOD 2019 UPDATEMNRF Flood Warning Extended for Pembroke District - Issued on May 9, 2019Community Improvement PlanImportant Press Release from the Ottawa River Regulating Committee Issued on May 3 2019Notice of Public Meeting - Proposed Building Permit Fees ChangesNews Release from County of Renfrew: Support Available for Residents Impacted by the FloodMedia Release - Laurentian Valley Flood UpdatePublic Notice - Ministry of Transportation Communication on Hazley Bay and Des Allumettes BridgesNotice that the Township of Laurentian Valley has declared an Emergency due to Flooding on April 27, 2019Renfrew County and District Health Unit Media Release on April 26, 2019 - Reminder to make sure your drinking water well is safe before using in flooded areasAvailability of Sandbags and Sand Supplies in Laurentian ValleyCatch the Ace Lottery Every Thursday in Laurentian Valley!Sandbagging TipsNotice of Application of Zoning By-law Amendment File No. Z2019-02 and Public Meeting of April 16, 2019Notice of April 2, 2019 Public Meeting for a Community Improvement Plan for the Township of Laurentian ValleyPetawawa, Pembroke and Laurentian Valley - Receiving Waste Collection Schedule SoonSpecial Council Meeting

Water Term Defininitions

MAXIMUM ACCEPTABLE CONCENTRATION, is a health standard known to have adverse effects.

, suspected adverse health effects but not feasible for practical reasons to establish a MAC

Adverse Test Result
Is a test that fails, where the results exceed the MAC or IMAC, and retesting and boil water advisories must be issued.

Means that no traces were found in the sample submitted for testing.

E. Coli
Escherichia coli. is a fecal coliform that can be detected by using membrane filtration or presence/absence tests and should not be detected in any drinking water sample. Because E coli. is rapidly destroyed by chlorine, it is a good indicator of recent fecal pollution.

Heterotrophic Plate Count
HPC, A laboratory procedure for estimating the total bacteria count in a water sample. Also called standard plate count, total plate count, or total bacterial count. The sample is incubated for 48-72 hours, MAC of 500 colonies /milliliter. The only practical way to determine the total population of bacteria in the water.

Background Bacteria
Bacterial aftergrowth, bacteria reproducing in the system after it has been treated, usually in stagnant water in dead ends, or low flow sections of the water distribution system. The Standard Plate Count determines whether this problem exists.

Total Coliforms
The detection of coliform bacteria in a water sample is a warning of possible contamination. One positive test does not conclusivly prove contamination, hawever, additional tests must be done. The samples may have been contaminated by improper sampling, or laboratory error, therefore repeat sampling must be done.

Chlorine Residual
Is the amount of free chlorine and chlorine compounds in the distribution system available to kill or inactivate any microorganisms present or introduced to the water supply after it leaves the treatment plant. A chlorine residual of 0.2 mg/l measured at the exreme ends of the distribution system is a good indication that chlorine residual is available.

Can be formed when organic materials are present in the water being disinfected with chlorine. Trihalomethanes are suspected carcinogenic compounds. Therefore there is a MAC of .10mg/liter on a 4 quarter rolling average.