Cross Connection Control Program

The Cross Connection Control Program is in place to ensure the safety of our water supply through backflow prevention.

The City of Cambridge Water Use By-law requires that all buildings (except some residential properties) be equipped with backflow prevention devices. These devices need to be maintained and tested regularly by a licensed backflow prevention device tester licensed by the City of Cambridge.

Submit annual test reports or tri-annual system surveys on the City Application Portal.

New - Learn About Backflow and Cross Connections

What is backflow and how would this occur?

Backflow means a flowing back or reversal of the normal direction of water flow. The water supply system is normally pressurized to make sure water flows into your building or plumbing system, but there are times that pressure may be reduced.

If the pressure drops enough that the flow of water reverses, unwanted substances could flow backwards and contaminate the public water supply.

What is a Cross Connection?

A cross-connection is any connection, whether permanent or not, between the public potable water system and a possible source of contamination.

Some examples of cross-connections are fire sprinkler and irrigation systems, or plumbing connections to equipment that uses water, such as beverage machines, dental chairs and dialysis equipment.

What is a backflow prevention device?

Backflow preventers are mechanical devices that prevent water from flowing backwards into a water supply. There are degrees of protection ranging from a vacuum breaker on a garden hose line to reduced pressure zone backflow preventers commonly used in an industrial setting where chemicals are connected to water lines. The type of device required and location it is installed depends on the application and the threat level.

What if I choose to not install a backflow device?

The by-law mandates that every building, except for some residential buildings must be equipped with backflow prevention devices. Failure to install and maintain these devices could result in having your water shut off, and/or a fine.

Instructions for Annual Compliance to the Cross Connection Control/Backflow Prevention Program

Maintenance

Maintain existing backflow preventers in good working order. Backflow Preventers must be tested annually by a backflow prevention device tester licensed by the City of Cambridge to ensure they are functioning as intended.

Testing

Make sure all the backflow preventers are tested, including devices on fire sprinkler and irrigation systems. The devices must be tested prior to the due date listed on the reminder notice that is sent out by the city.

If your devices fail, have them repaired or replaced within forty-eight hours.
If you replace a device, include the serial number for the device that was removed in addition to the serial number for the new device on the test report submitted.
If you remove a device, a test report must be submitted with the serial number of the device and the reason that it was removed.

Cross Connection Survey

Every three years a survey (audit) must be conducted to identify any new cross connections.

If you need to install additional devices, a building permit will be required and an inspection conducted.

Visit our website or contact building@cambridge.ca for permit requirements and submissions.

Submit Test Reports and Surveys

When all testing is complete, submit test reports and/or surveys on the City Application Portal.

Cross Connection Control Team
backflow@cambridge.ca
(519) 513-6329
(519) 513-6323

List of Licensed Backflow Prevention Device Testers

Contractor	Phone #	Approved System
A-1 Plumbing & Mechanical 440 Lake Ave N Unit 1, Hamilton ON L8E 3C	905-662-7444	All Systems
Active Mechanical (1246175 Ontario Ltd) 3153 Wharton Way, Mississauga ON L4X 2B6	416-722-1549	All Systems
Adaptive Mechanical Inc. 49 Cedar St, Cambridge ON N1S 1V4	226-600-8146	All Systems
Afterglow Limited 75c Northland Rd, Waterloo ON N2V 1Y8	519-747-7732	All Systems
Age Mechanical Plumbing 112 Guelph St, Georgetown ON L7G 4T1	905-877-3638	All Systems
Ainsworth Incorporated 131 Bermondsey Rd, Toronto ON N3H 4Z1	416-751-4420	All Systems
A-Pro Plumber Inc 760 Kummer Cres, Cambridge ON N3H 4Z1	289-440-0293	All Systems
Arbuckle Plumbing Solutions 45 Elginfield Dr, Guelph ON N1E 4E5	519-716-7473	All Systems
Arcadian Projects Incorporated 212 Bergey Crt Unit B2, New Hamburg ON N3A 2J5	519-804-9697	All Systems
Arizona Outdoor Solutions 831 Centre Rd, Waterdown ON L9N 2Z7	905-627-7485	Lawn Irrigation Systems Only
AW Reaney Plumbing Inc 189 Cedardale Ave, Stoney Creek ON L8E 1R4	289-308-6665	All Systems
Backflow Pro Inc. 12 Deerpark Ave, Brantford ON N3R 6H4	519-750-4244	All Systems
Backflow Specialties 211 Carnwith Dr W, Whitby on L1M 2G3	905-655-4772	All Systems
Basem Plumbing & Heating 605 Main St, Cambridge ON N1R 5S7	519-624-6656	All Systems
Benchmark Plumbing Inc. 239 Kirkwood Dr, Dundas ON L8H 7A5	519-771-2848	All Systems
Binbrook Plumbing & Heating (1997) Ltd. 4045 Guyatt Rd W, Binbrook ON L0R 1C0	905-549-7252	All Systems
Bird Infrastructure Ltd. 1201 Nicholson Rd, Newmarket ON L3Y 9C3	905-954-1020 ext 240	All Systems
Black & McDonald Limited 328 Green Rd, Stoney Creek ON L8E 2B2	905-560-3100	All Systems
BML Multi Trades Group Limited 32 Ryan Pl, Brantford ON N3T 5V7	519-756-4150	All Systems
Bob's Your Plumber Incorporated 5409 Wellington Rd, Rockwood ON N0B 2K0	519-763-6581	All Systems
Brenner Mechanical Incorporated 630 Superior Dr, Waterloo ON N2V 2C6	519-746-0439	All Systems
Briar Pump & Plumbing 653 Glenmorris Rd W, Glen Morris ON N0B 1W0	519-240-3477	All Systems
Brisson And Massie Mechanical Incorporated 1044 Hargrieve Rd, London ON N6E 1P5	519-668-2351	All Systems
Byams Plumbing Canada Inc 6-62 McBrine Pl Unit 6, Kitchener ON N2H 1H3	519-573-6449	All Systems
C & H Fire Suppression Systems Inc 274 Shirley Ave Unit 103, Kitchener ON N2B 2E1	519-742-6030	Fire Protection Equipment Only
C.J. Brubacher Limited 19 First St E, Elmira ON N3B 2E6	519-669-3362	All Systems
Caledon Creek Mechanical Limited 78 Centennial Rd Unit 10, Orangeville ON L9W 1P9	519-940-8557	All Systems
Cambridge Plumbing & Water Conditioning 75 Inverness Dr, Cambridge ON N1S 4C8	519-621-8050	All Systems
Canadian Design & Construction Inc. (CDC) 3095 Wolfedale Rd Unit B-3, Mississauga ON L5C 1V8	905-712-1232	All Systems
Central Plumbing Heating & Fire Protection 601 Green Mountain Rd E, Stoney Creek ON L8J 2Z7	905-527-2406	All Systems
Charlesworth Plumbing Incorporated 31 Woodmans Crt, Kitchener ON N2P 2B2	519-870-3822	All Systems
Chasles Plumbing Limited 5 Paul Ave, Ayr ON N0B 1E0	519-240-0077	All Systems
CJS Express Plumbing & Electrical Limited 240 Sheldon Dr, Cambridge ON N1T 1A8	519-621-3111 ext. 301	All Systems
Classic Fire & Life Safety 50 Colds Crt Unit 108, Guelph ON N1C 1B9	416-740-3000	Fire Protection Equipment Only
Combined Air Mechanical Services 3-1670 Finfar Crt, Mississauga ON L5J 4K1	905-458-1000	All Systems
Comtrade Ltd 250 Royal Oak Rd, Cambridge ON N3H 4R6	519-591-5498	All Systems
Concord Plumbing & Heating Inc 86 Guided Crt Unit 102, Etobicoke ON M9V 5H1	416-702-7511	All Systems
Conestogo Mechanical 50 Dumart Pl, Kitchener ON N2K 3C7	519-579-6740	All Systems
Cornerstone Plumbing Solutions Incorporated 400 Elizabeth St Unit A-B, Guelph ON N1E 2Y1	519-993-0494	All Systems
Cove Mechanical Incorporated 850 Legion Rd Unit 12, Burlington ON L7S 1T5	905-632-2683	All Systems
Culliton Incorporated 473 Douro St, Stratford ON N5A 6W3	519-271-1981	All Systems
DanMac Plumbing & Drain Service Ltd 25 Chauncey Ave, Etobicoke ON M8Z 2Z2	416-237-9161	All Systems
Dave Hurst Plumbing & Heating 2400 Shirley Dr, Kitchener ON N2B 3X5	519-893-3464	All Systems
Dean-Lane Contractors Incorporated 15 McBrine Pl, Kitchener ON N2R 1H5	519-585-0903	All Systems
Dietrich Plumbing & Pump Limited 1061 Industrial Cres, St. Clements ON N0B 2M0	519-699-4605	All Systems
Dordan Mechanical Incorporated 227 Victoria St, New Hamburg ON N3A 2K5	519-662-9900	All Systems
Drains R Us Plumbing 133 Chestnut St N, Cambridge ON N3H 2J9	519-654-0007	All Systems
Due North Mechanical Incorporated 71 Water St, Ayr ON N0B 1E0	866-515-9628	All Systems
Eco Pro Plumbing and Drains Inc 21-131 Sheldon Dr, Cambridge ON N1R 6S2	519-219-0868	All Systems
Einwechter Plumbing & Heating Inc 1192 Queen St N, New Dundee ON N0B 2E0	519-573-8662	All Systems
EOS Mechanical Inc. 30 Great Gulf Dr Unit 27, Concord ON L4K 0K7	416-846-5999	All Systems
Everding Fire Protection Limited 270 Mill St, Kitchener ON N2M 3R5	519-578-6100	Fire Protection Equipment Only
G.O. Tap Plus Incorporated 335 Watline Ave, Mississauga ON L4Z 1P3	416-695-4377	All Systems
Gowing Water Plumbing And Heating Inc 5 Brown Ave, Cambridge ON N1R 5S3	519-658-5552	All Systems
Hammond Plumbing / Enercare 1090 Fountain St N Unit 4, Cambridge ON N3E 1A3	226-666-0324	All Systems
Hespeler Plumbing & Heating Inc. 46 Hammet St, Cambridge ON N3C 2H4	519-658-3007	All Systems
Hill's Plumbing Service Incorporated 1900 King St E, Hamilton ON L8K 6R4	905-741-7241	All Systems
Hy-Pro Plumbing & Drain Cleaning 191 Samuelson St, Cambridge ON N1R 1K2	519-622-7770	All Systems
ICI Plumbing Incorporated 795 Laurel St, Cambridge ON N3H 3Z1	519-212-6809	All Systems
Infinity Group Construction Inc / First Choice Maintenance Inc 5450 Mainway Dr, Burlington ON L7L 6A4	416-825-6447	All Systems
J.C. Waterworks Plumbing Incorporated 879 Guelph St, Kitchener ON N2H 5Z2	519-894-4005	All Systems
Jantzi Plumbing Incorporated 1426 Hutchison Rd, Wellesley ON N0B 2T0	519-656-3030	All Systems
Jay Stewart Mechanical 1535 Strasburg Rd, Kitchener ON N2R 1K2	519-576-2663	All Systems
Jaywal Mechanical Limited 575 Piercey Rd, Bolton ON L7E 5B5	905-838-5100	All Systems
JLS Plumbing And Backflow Inc. 6 Stauffer Rd, Brantford ON N3V 0B1	519-807-7886	All Systems
JTS Mechanical Systems Incorporated 5061 Wellington County Rd 32 Rd, Guelph ON N1H 6J4	519-635-0022	All Systems
K.Mikel Plumbing 20 Grand Ave, Waterloo ON N2K 1B3	519-578-9497	All Systems
Kastl & Zuch Plumbing & Heating Limited 3 Colby Crt, Waterloo ON N2V 1Y9	519-884-0990	All Systems
Keith's Plumbing & Heating Incorporated 659 Parkdale Ave N, Hamilton ON L8H 5Z1	905-639-8259	All Systems
Kittel Mechanical (2003) Inc. 949 Glengarry Cres Unit 1, Fergus ON N1M 2W8	226-383-7100	All Systems
Kivell Mechanical 17 Woodland Dr, Cambridge ON N1R 2X7	519-654-6282	All Systems
L.J. Barton Mechanical Incorporated 1341 Osprey Dr Unit 4, Ancaster ON L9G 4V5	905-304-1976	All Systems
LEaC Shield 123 Consortium Crt, London ON N6E 2S8	855-946-1783	All Systems
Len's Plumbing & Heating Service 370 Dumfries Ave, Kitchener ON N2H 2G1	519-745-0997	All Systems
Mac's Plumbing 20 Summerfield Dr, Guelph ON N1L 1T6	519-831-8686	All Systems
Manning Mechanical Services 2 Cedar Lane, Burford ON N0E 1A0	519-449-2079	All Systems
Martin DeJong Plumbing And Heating Ltd. 199 Orkney Rd RR #1, Lyden ON L0R 1T0	905-628-5266	All Systems
McGregor Plumbing And Heating Incorporated 2065 Line 29 R.R.2, Tavistock ON N1R 1K2	519-655-2259	All Systems
Mr. Rooter Plumbing 191 Samuelson St, Cambridge ON N1R 1K2	519-621-8776	All Systems
MWS Solutions Incorporated 131 Shoemaker St, Kitchener ON N2E 3B5	519-886-2475	All Systems
Nas Plumbing Inc 531 Red River Dr, Waterloo ON N2T 2B7	519-774-1251	All Systems
Naylor Building Partnerships Incorporated 455 North Service Rd E, Oakville ON L6H 1A5	905-338-8000	All Systems
Nelco Mechanical Limited 77 Edwin St, Kitchener ON N2H 4N7	519-744-6511	All Systems
Ocean Mechanical Inc. 665 Millway Ave Unit 4, Concord ON L4K 3T8	905-760-1343	All Systems
Orella Group Inc. 5035 Service Rd C9, Burlington ON L7L 5V2	905-331-9090	All Systems
Pat's Plumbing And Backflow Inc. 143 Fisher Mills Rd, Cambridge ON N3C 1E1	519-222-0096	All Systems
Peter Lawton & Son Plumbing Incorporated 37 Charles St, London ON N6H 1H1	519-434-2306	All Systems
PHD Plumbing Solutions 120 Waterloo Ave, Guelph ON N1H 3J1	519-257-8537	All Systems
Priority Mechanical Service Ltd. 3160 Alps Rd, Ayr ON N0B 1E0	519-632-7116	All Systems
Pro Tech Water Services 31 Schneller Crt, Baden ON N3A 2K8	519-634-9956	All Systems
ProActive Water Solutions Inc. 2 Holland Dr Unit 9, Bolton ON N3A 2K8	416-249-2837	All Systems
Process Group Inc. 555 Conestoga Blvd, Cambridge ON N1R 7P5	519-622-5520 ext. 282	All Systems
R & R Mechanical Group Incorporated 62 McBrine Pl Unit 8, Kitchener ON N2R 1H3	519-465-1748	All Systems
Reliance Home Comfort 3-275 Thompson Dr, Cambridge ON N1T 2B9	888-490-3011	All Systems
Richardson Fire Systems Inc. 13 Old Mill Rd, Cambridge ON N3H 4R8	519-650-8057	Fire Protection Equipment Only
Rite Way Mechanical Limited 33 Hayes Ave, Guelph ON N1E 5V6	519-836-9961	All Systems
Ritu Plumbing Inc. 7527 Discus Cres, Mississauga ON L4T 2V4	416-992-7488	All Systems
Roberts Onsite Incorporated 209 Manitou Dr, Kitchener ON N2C 1L4	519-578-2230	All Systems
Ron Beer Plumbing & Water Trmnt Ltd. 111 Black St, Cambridge ON N3C 2S2	519-658-6879	All Systems
Russells Plumbing 225 Gibson Ave, Hamilton ON L8L 6K2	905-541-2877	All Systems
Schweitzers Plumbing Centre 1768 Erbs Rd W, St Agatha ON N0B 2L0	519-747-1819	All Systems
Secure Water Systems 27 Monarch Rd Unit 1B, Guelph ON N1K 1N4	519-827-9622	All Systems
Sider Plumbing & Mechanical Limited 180 McIntyre Dr, Kitchener ON N2R 1E8	519-748-1694	All Systems
Spira Fire Protection Limited 31 Hayes Ave, Guelph ON N1E 5V6	519-823-1150	Fire Protection Equipment Only
Stanton Mechanical Ltd 100 Campbell Ave Unit 8, Kitchener ON N2H 4X8	519-741-8384	All Systems
Stumpf Fire Protection Limited 167 Lexington Crt Unit 1, Waterloo ON N2J 4R9	519-888-0043	Fire Protection Equipment Only
Sutherland-Schultz Limited 150 Water St N Unit 201, Cambridge ON N1R 3E2	519-635-8432	All Systems
TEC Mechanical Inc. 521 Campbellville Rd, Campbellville ON L0P 1B0	905-208-2723	All Systems
Thermal-Tech Mechanical Limited 49 Ebycrest Rd, Breslau ON N0B 1M0	519-648-1200	All Systems
Tiger Plumbing Incorporated 262 Breithaupt St, Kitchener ON N2H 5H5	519-585-1840	All Systems
Transparent Backflow Services 473 Alexmuir Pl, Waterloo ON N2T 1S5	519-574-8776	All Systems
TRH Plumbing & Heating 650 Weber St N, Waterloo ON N2V 2N2	519-265-9815	All Systems
TriCity Plumbing 251 Arnold St, Kitchener ON N2H 6E8	888-981-8811	All Systems
Troy Life & Fire Safety Ltd 900 Maple Grove Rd Unit 1, Cambridge ON N3H 4R7	519-650-0600	Fire Protection Equipment Only
Turner Plumbing & Heating Limited 457 Huron St, Stratford ON N5A 5T8	519-271-2782	All Systems
Van Dam Mechanical Contracting Inc. 478 Anndale Rd, Waterloo ON N2K 2S3	519-571-1844	All Systems
Velocity Mechanical Incorporated 176 Forfar Ave Unit B, Kitchener ON N2B 3A1	519-896-1119	All Systems
Viking Fire Protection Inc. 115 Saltsman Dr Unit 13, Cambridge ON N3H 4R7	226-581-0989	Fire Protection Equipment Only
Vulcan Plumbing Services Inc. 4118 Weimar Line RR 3, Wellesley ON N0B 2T0	519-616-8698	All Systems
W.C. Weinhardt Plumbing Incorporated 199 Franklin St N, Kitchener ON N2A 1Y4	519-221-5709	All Systems
Watersmart Systems 105 Lexington Rd Unit 14, Waterloo ON N2J 4R7	519-886-7331	All Systems
Wellington Plumbing & Heating Limited 656 Imperial Rd N, Guelph ON N1H 7M3	519-821-4130	All Systems
Western Fire Protection Incorporated 1030B Adelaide St S, London ON N6E 1R6	519-641-3059	Fire Protection Equipment Only

Permits

A building permit is required for a new backflow preventer or new plumbing system. Visit the building permit page or contact building@cambridge.ca for more information.

New - Requirements for Lead Free Backflow Prevention Devices

We would like to remind installers of the requirement to install lead free backflow prevention devices when the device is provided in connection with a potable water system.

As per CSA-B64.0 - 4.1.3 any device connected to a plumbing system intended to convey or dispense water used for human consumption, through drinking or cooking, shall not contain a weighted average lead content in excess of 0.25% when evaluated in accordance with NSF/ANSI 372.

These devices are typically labelled as “lead free” or may have a serial number with LF included.

Any device installed that does not meet this requirement will need to be replaced with an acceptable approved device. If you have any questions in regards to this requirement please feel free to contact our office at CCCAdmin@cambridge.ca

We are committed to providing accessible services in accordance with the Accessibility for Ontarians with Disabilities Act (AODA). If you require information in an alternative format or need assistance accessing these services, please contact us at building@cambridge.ca, P: 519-623-1340, or by visiting City Hall during regular business hours. We will work with you to provide the information or service in a format that meets your needs.