(WCS – R13/2023)
August 10, 2023 – Caution is advised around all waterways in the Rideau Valley Watershed following several large rain events over the last few weeks, with additional rain in the forecast. Observed rainfall amounts for the last month across the watershed are significantly more than normal. Environment Canada’s short-term weather forecast indicates we may receive an additional 50 to 100 mm of rain over the next 7 days. 

Water levels and flows in all waterways are generally higher than average for this time of year across the Rideau Valley Watershed. Although no significant riverine flooding is anticipated, water levels and flows are expected to remain seasonally high in all waterways in the Rideau Valley Watershed over the next week. 

Until the water levels and flows recede, the RVCA advises the public to exercise extreme caution around ALL WATERBODIES AND DAM STRUCTURES and remind children about the dangers of playing near open water.  All boaters and swimmers using the Rideau River and other larger water bodies are advised to exercise extreme caution due to much higher flows than normal over the next few days.

This watershed conditions statement is in effect until Friday, August 18, 2023 at 5 PM or until an update has been issued.

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More Information:

Contact: Brian Stratton, RVCA Manager Engineering Services
Rideau Valley Conservation Authority
613-692-6804, 1-800-267-3504 ext. 1141

www.rvca.ca/watershed-conditions

"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed 
created under the Conservation Authorities Act to deliver a range of programs in watershed management and
natural resource conservation."

RVCA Watershed Conditions Statements: 

• Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
• Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
• Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
• Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

(WCS-LW - 2/2023)
August 9, 2023 – Watershed conditions in the Tay River and Rideau Lakes watersheds have returned to “Normal’ under the Ontario Low Water Response Program. However, the water levels in Bobs and Christie Lakes, which are used throughout the recreational season to augment the flow in the Tay River and regulate navigation in the Rideau River, are still below average for this time of year. 

Parks Canada staff continue to closely monitor these lakes and expect the water levels to approach normal levels with rain in the forecast.

With well above-average rainfall amounts across the watershed during the last month, stream flows and water levels have recovered (except as noted above) from the previous low water status and are now above average for this time of year. Looking ahead, the seven-day weather forecast suggests we may receive 25 to 50 mm of rain across the watershed.
 
Conservation Authority staff continue to monitor conditions and communicate with water managers throughout the watershed. Updates to this message will be issued as conditions warrant. 
 

More resources:

Ministry of Environment, Conservation and Parks: https://www.ontario.ca/page/ministry-environment-conservation-parks

Ontario’s Low Water Response program: https://www.ontario.ca/page/low-water-response-program 

RVCA website: www.rvca.ca

Hourly and daily streamflows and water levels: https://www.rvca.ca/watershed-monitoring-reporting/reporting/streamflow-water-levels 

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More Information:
Contact: Brian Stratton, RVCA Manager Engineering Services
Rideau Valley Conservation Authority

613-692-6804, 1-800-267-3504 ext. 1141

Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed
created under the Conservation Authorities Act to deliver a range of programs in watershed management and
natural resource conservation.

RIDEAU VALLEY, July 18, 2023 – In the war on invasive species, knowledge is the most potent weapon – and a free community workshop aims to arm the public with as much invasive species information as possible.

Focusing on identification and how to reduce their spread, the workshop on Saturday, July 29 will feature staff presentations as well as hands-on displays of invasive plants and animals. 

“We’re hoping more members of the public will become familiar with these species and their impacts,” said Amanda Lange, RVCA’s Aquatic Habitat Monitoring Co-ordinator. “The more people know about invasive species, the more we can collectively work to curb their spread. And by reducing the spread, we can give our native species a fighting chance and promote a more balanced and diverse local ecosystem.”

Invasive plants like Himalayan Balsam, garlic mustard, Japanese knotweed and dog-strangling vine can spread rapidly, pushing out native species and leaving gaps in the area’s biodiversity. This can reduce food supplies and resources for other species who rely on the missing native plants. Invasive plants are also often poor substitutes when it comes to erosion and flood mitigation, as their roots generally aren’t as deep or strong.

In the water, invasive aquatic species can have dramatic ecosystem impacts while also measurably changing water quality and characteristics. For example, invasive zebra mussels filter suspended particulates so effectively they can cause distinctly weedier lakes, since sunlight can reach further into the water column.

“We’re excited to welcome the public to learn what they can do in their own backyards to make a difference,” Lange said. “It’s a group effort to keep our local environment as natural and functional as possible for everyone’s benefit.”

The workshop will be held at the RVCA’s headquarters in Manotick from 9 a.m. to 12 p.m. on Saturday, July 29. All are welcome, including community associations, environmental groups, property owners, students, gardeners and anyone with an interest in learning about invasive species. 

Light refreshments will be served. Advance registration is required. 

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WESTPORT, July 14, 2023 – A new weekly Forest School program will cater to kids ages 2 to 5 and their caregivers this September.

The parent-assisted program will run every Tuesday from 9:30 to 11:30 for 12 weeks, beginning Sept. 12. 

“It’s so important to let young kids engage in risky play, explore a diverse landscape, develop their motor skills and of course receive all the wonderful benefits from being outside,” said Foley Mountain site supervisor Rebecca Whitman. “The sooner we can help children build connections to the land and nature, the better off we’ll all be.”

The Forest School model allows students to spend most of their time outside, playing and learning through experiential, hands-on activities that promote curiosity in an active and authentic learning environment. Foley Mountain has offered Forest School programs since 2018. 

“We wanted to serve younger children, so we went with this parent-assisted model that serves a wider range of families,” Whitman said. Caregivers can help younger kids in the bathroom and help monitor risky play. It’s a great way to introduce younger kids to the Forest School environment – and the caregivers appreciate it, too. 

“Especially when they’re little, they want to share this experience with their kids,” Whitman said. 

Each week, the two-hour program will begin with free play prompts like mud kitchens, planks and boards, creature exploration, nature-based art, shelter building and seasonal activities.  Then the group will gather for a snack and story – usually around the campfire – and decide on the day’s big adventure in the forest.

Whitman said this weekly program will differ from Foley’s popular monthly drop-ins, since the same group will come together each week throughout the season, fostering a sense of community and encouraging independence and social learning.

“It’s so rich for all those developmental opportunities,” Whitman said. 

Registration is now open for the fall session at a cost of $216 plus HST. Families with slightly older or younger siblings are welcome to have them tag along.

Fall school-age and kinder Forest School programs are also open for registration. The half-day kinder program will run on Wednesdays starting Sept. 13 and the full and half-day programs for kids ages 6 to 12 will run on Thursdays beginning Sept. 14. 

Visit https://www.rvca.ca/outdoor-education/foley-mountain-ca/foley-mountain-forest-scool to learn more and register. 

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(WCS-LW - 1/2023)
July 11, 2023 – Following a period of dry and hot weather, the Rideau Valley Low Water Response Team is declaring a MINOR low water status for the Tay River and Rideau Lakes watersheds (referred to as Upper Rideau Valley watershed), after officials met to discuss current watershed conditions on Monday, July 10, 2023.

Upper Rideau Valley watershed residents and businesses are encouraged to voluntarily reduce their water usage by 10 percent. This is especially important for those who have permits for taking water from surface or groundwater sources and all residents on private, communal or municipal wells. The requested voluntary water use reduction does not apply to residents of urban Ottawa because the City of Ottawa central drinking water system draws from the Ottawa River. All residents throughout the Rideau Valley watershed should be aware of any bans or bylaws that may be in place in their municipalities regarding watering or fire bans.

Over the last couple of months, rainfall amounts have been quite variable across the Rideau Valley watershed with some areas receiving above normal precipitation (urban Ottawa) but many other areas receiving limited rainfall. In general, the average 90-day rainfall measured at climate stations in the upper Rideau Valley watershed has been below 80 per cent of normal for this time of year which represents “minor” low water severity. Stream flow values for all regulated waterways (augmented from the reservoir lakes in the Tay River watershed) range from 60 to 70 per cent of normal for this time of year. Natural system stream flow values range from 30 to 50 per cent of normal for this time of year.

Parks Canada staff are closely monitoring the water levels throughout the Rideau Canal system inside the Rideau Valley watershed. The water levels in the reservoir lakes (Bob’s Lake and Wolfe Lake) are currently well below normal and are expected to decline further unless significant precipitation is received soon. Rideau River flows downstream of Big Rideau Lake have been reduced to minimum when possible. Water levels in the Rideau River below Smiths Falls are within navigable ranges.

Looking ahead, the seven-day weather forecast suggests we may receive up to 25 mm of rain across the watershed. If received, these rainfall amounts would slightly improve the 90-day rainfall deficit and the low stream flow values discussed above if the rainfall is distributed across all areas of the watershed.

To better understand local conditions, landowners, businesses, and industries are encouraged to contact Brian Stratton by email () if they are experiencing any unusual water-related problems. 

Conservation Authority staff continue to monitor conditions and communicate with water managers throughout the watershed. Updates to this message will be issued as conditions warrant. 

More resources:

Ministry of Environment, Conservation and Parks: https://www.ontario.ca/page/ministry-environment-conservation-parks

Ontario’s Low Water Response program: https://www.ontario.ca/page/low-water-response-program 

RVCA website: www.rvca.ca

Hourly and daily streamflows and water levels: https://www.rvca.ca/watershed-monitoring-reporting/reporting/streamflow-water-levels 

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More Information:
Contact: Brian Stratton, RVCA Manager Engineering Services
Rideau Valley Conservation Authority

613-692-6804, 1-800-267-3504 ext. 1141

Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed
created under the Conservation Authorities Act to deliver a range of programs in watershed management and
natural resource conservation.