Port Colborne Treatment Plant - 2015 Annual Water Quality Report

The Annual Water Quality Report summarizes the quality of drinking water from the Port Colborne Water Treatment Plant from January 1 to December 31, 2015.

The Port Colborne Water Treatment Plant Summary Report is available for inspection.

Description of Drinking Water System

A conventional surface water treatment plant incorporates the following steps in its purification process:

  • Zebra mussel control
  • Travelling screens
  • Coagulation
  • Flocculation
  • Sedimentation
  • Filtration
  • Disinfection

Port Colborne Water Treatment provides water to the City of Port Colborne.

The water treatment chemicals used over this reporting period are:

  • Sodium Hypochlorite
  • Aluminum Sulphate

Monetary Expenses Incurred

To ensure safe and efficient operations, the following major repairs or upgrade projects took place:

  • Main facility security upgrades approximately $104,000
  • Engineering costs for the design of new Water Tower and Plant upgrades approximately $615,000

Water Quality Test Results

Microbiological

Total Coliform and E.coli bacteria tests are performed on raw, treated and distributed drinking water.

Test Number of Samples Range of E.Coli or Fecal Results (minimim number)-(maximum number) Range of Total Coliform Results (minimim number)-(maximum number) Number of HPC* Samples Range of HPC Results (minimim number)-(maximum number)
Raw 52 0-134 0-1130 Not applicable Not applicable
Treated 54 0-0 0-0 54 0-3
Distribution 106 0-0 0-1 106 0-54

*HPC (heterotrophic plate count) bacteria indicate biological growth. They are not harmful to humans and do not represent poor drinking water quality.

Operational

Operational tests are done by treatment plant operators to evaluate process conditions and to make adjustments to the process.

Test Number of Samples Range of Results (minimim number)-(maximum number)
Turbidity 8760 0.01-0.604 NTU*
Chlorine 8760 0.55-1.64 mg/L
Fluoride Not applicable  

*NTU (nephelometric turbidity units) is a unit that measures the lack of water clarity.

An analyzer continuously monitors the water treatment process and records results on a predetermined frequency. Continuous monitors use 8760 as the number of samples.

Inorganics

Inorganic substances include heavy metals and dissolved minerals that may be present in treated drinking water. The following is a summary of inorganic parameters tested or the most recent sample results.

Parameter Sample Date Result Value Unit of Measure Exceedance
Antimony Nov. 18, 2015 <0.5 μg/L 0
Arsenic Nov. 18, 2015 <1.0 μg/L 0
Barium Nov. 18, 2015 20 μg/L 0
Boron Nov. 18, 2015 18.1 μg/L 0
Cadmium Nov. 18, 2015 <0.1 μg/L 0
Chromium Nov. 18, 2015 <1.0 μg/L 0
Mercury Nov. 18, 2015 <0. 1 μg/L 0
Selenium Nov. 18, 2015 <1.0 μg/L 0
Sodium Dec. 9, 2015 11.6 mg/L 0
Uranium Nov. 18, 2015 <1.0 μg/L 0
Fluoride Dec. 9, 2015 <0.1 mg/L 0
Nitrite Dec. 9, 2015 <0.05 mg/L 0
Nitrate Dec. 9, 2015 0.33 mg/L 0

Organics

Trace organic test parameters include: volatile organic substances, pesticides, solvents, dioxins, PCB's, and disinfection by-products. The following is a summary of organic parameters tested or the most recent sample results.

Parameter Sample Date Result Value Unit of Measure Exceedance
Alachlor Nov 18, 2015 <0.4 μg/L 0
Aldicarb Nov 18, 2015 <0.6 μg/L 0
Aldrin + Dieldrin Nov 18, 2015 <0.004 μg/L 0
Atrazine + N-dealkylated metobolites Nov 18, 2015 <0.9 μg/L 0
Azinphos-methyl Nov 18, 2015 <0.3 μg/L 0
Bendiocarb Nov 18, 2015 <1.0 μg/L 0
Benzene Nov 18, 2015 <0.2 μg/L 0
Benzo(a)pyrene Nov 18, 2015 <0.005 μg/L 0
Bromoxynil Nov 18, 2015 <0.09 μg/L 0
Carbaryl Nov 18, 2015 <1.0 μg/L 0
Carbofuran Nov 18, 2015 <1.0 μg/L 0
Carbon Tetrachloride Nov 18, 2015 <0.2 μg/L 0
Chlordane (Total) Nov 18, 2015 <0.004 μg/L 0
Chlorpyrifos Nov 18, 2015 <0.3 μg/L 0
Cyanazine Nov 18, 2015 <0.3 μg/L 0
Diazinon Nov 18, 2015 <0.3 μg/L 0
Dicamba Nov 18, 2015 <0.08 μg/L 0
1,2-Dichlorobenzene Nov 18, 2015 <0.2 μg/L 0
1,4-Dichlorobenzene Nov 18, 2015 <0.2 μg/L 0
Dichlorodiphenyltrichloroethane (DDT) + metabolites Nov 18, 2015 <0.005 μg/L 0
1,2-Dichloroethane Nov 18, 2015 <0.2 μg/L 0
1,1-Dichloroethylene (vinylidene chloride) Nov 18, 2015 <0.2 μg/L 0
Dichloromethane Nov 18, 2015 <1.0 μg/L 0
2-4 Dichlorophenol Nov 18, 2015 <0.2 μg/L 0
2,4-Dichlorophenoxy acetic acid (2,4-D) Nov 18, 2015 <0.08 μg/L 0
Diclofop-methyl Nov 18, 2015 <0.08 μg/L 0
Dimethoate Nov 18, 2015 <0.3 μg/L 0
Dinoseb Nov 18, 2015 <0.07 μg/L 0
Diquat Nov 18, 2015 <7.0 μg/L 0
Diuron Nov 18, 2015 <0.6 μg/L 0
Glyphosate Nov 18, 2015 <20.0 μg/L 0
Heptachlor + Heptachlor Epoxide Nov 18, 2015 <0.004 μg/L 0
Lindane (Total) Nov 18, 2015 <0.0004 μg/L 0
Malathion Nov 18, 2015 <0.3 μg/L 0
Methoxychlor Nov 18, 2015 <0.0009 μg/L 0
Metolachlor Nov 18, 2015 <0.2 μg/L 0
Metribuzin Nov 18, 2015 <0.2 μg/L 0
Monochlorobenzene Nov 18, 2015 <0.2 μg/L 0
Paraquat Nov 18, 2015 <1.0 μg/L 0
Parathion Nov 18, 2015 <0.2 μg/L 0
Pentachlorophenol Nov 18, 2015 <0.5 μg/L 0
Phorate Nov 18, 2015 <0.2 μg/L 0
Picloram Nov 18, 2015 <0.08 μg/L 0
Polychlorinated Biphenyls(PCB) Nov 18, 2015 <0.08 μg/L 0
Prometryne Nov 18, 2015 <0.1 μg/L 0
Simazine Nov 18, 2015 <0.3 μg/L 0
THM Annual Average 23.4 μg/L 0
Temephos Nov 18, 2015 <20 μg/L 0
Terbufos Nov 18, 2015 <0.1 μg/L 0
Tetrachloroethylene Nov 18, 2015 <0.2 μg/L 0
2,3,4,6-Tetrachlorophenol Nov 18, 2015 <0.5 μg/L 0
Triallate Nov 18, 2015 <0.2 μg/L 0
Trichloroethylene Nov 18, 2015 <0.2 μg/L 0
2,4,6-Trichlorophenol Nov 18, 2015 <0.5 μg/L 0
2,4,5-Trichlorophenoxy acetic acid (2,4,5-T) Nov 18, 2015 <0.09 μg/L 0
Trifluralin Nov 18, 2015 <0.2 μg/L 0
Vinyl Chloride Nov 18, 2015 <0.2 μg/L 0

Adverse Water Quality Incidents

Drinking water regulations identify "Indicators of Adverse Water Quality". Health officials and the Ministry must be immediately notified if indicators are found. These refer to any test result from treated or distributed drinking water that does not meet a provincial water quality standard or a situation where disinfection of the water may be compromised. The following notices were submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to the Spills Action Centre.

Incident Date Parameter Result Unit of Measure Corrective Action Date of Resolution
Aug 4, 2016 Total Coliform 1 CFU/100mL resample(s) Aug 5, 2015 and Aug 7, 2015

cfu=colony forming units

Lead Testing

The following is a summary of lead testing.

Location Type Number of Samples Range of Lead Results Unit of Measure Exceedance
Plumbing 4 < 0.0001 μg/L 0
Distribution 4 < 0.0001 μg/L 0

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