Channel Flow Measurement/ Monitoring
We measure open channel
flow for many reasons:
• Flow monitoring of irrigation schemes for compliance purposes
• To check for losses within an irrigation scheme
• Water Resource assessments for reliability
• In stream measurements to check minimum flow compliance
We measure flow in open channel irrigation races, rivers and streams.
This is done using traditional flow measurement techniques to
international and New Zealand standards, these have been specified
by both NIWA and Regional Councils. Local standards can be found
in Environment Canterbury’s NRRP.
This is measuring the water level height using either a float
and counterweight type water level sensor or a pressure type sensor.
The water level is usually recorded every 15 minutes as a logger
attached to the sensor. The height data is then converted into
flow record using a stage/discharge curve. We also can measure
groundwater levels using similar methods.
Stage discharge relationships
This is achieved by measuring flows at different water level heights,
a curve is established as a mean of the measurements. The curve
is then applied to stage record, to generate a flow record.
Flow Monitoring/ Logging/ Calibrations
We can download your
flow loggers and report the information to you. Alternatively you can
utilise our web server and have the information provided directly via
the web. We also carry spare Hydroflow flowloggers - if yours is found
to be faulty we will contact you while on site and arrange the replacement
while yours is away being repaired. This saves another field visit, saving
both time and money. This keeps the authorities happy as you can remain
compliant by having a working logger in place.
For manual downloads we store
the logger information on our database. This is reported to you initially
and you have time to peruse the information before it is forwarded
on to the authorities 14 days later. The authorities then check your
compliance and you will receive an annual report from them.
• You take control of you own monitoring
• You get to see the information prior to your compliance
• If you become aware of non-compliance before the authorities
you have an opportunity to amend you practices.
• We group clients together to optimize travel for the downloads
If you would like to
take advantage of this service download and print the application
complete it and mail or email back to us.
We have developed a
database that automates the compliance checking process of Resource
consent conditions. We load the conditions specific to the individuals
resource consents and then load the flowlogger/ waterlevel data
in and check against the compliance. This report cuts down the
amount of time regional council staff require to check your consent
conditions. This method of reporting has been approved by Environment
Canterbury, and is to be favorably recognized by them as the irrigator
taking a pro-active role in self monitoring.
to download an example of the compliance report that Boraman Consultants can produce.
We currently sample
and send away for analysis all types of water quality tests.
We use Cawthron institute in Nelson for the analysis and reporting
of all our water quality samples. We use standard collection methods.
We sample for:
• Compliance checks relating to resource consents
• Discharged water meets compliance standards
• Complaints for discharged water
• Checks for drinking water standards
• Heavy Metals, relating to timber treatment.
• Plant matter, relating to Algal bloom
We keep regular contact
with our suppliers and welcome their input on new developments
with equipment. We sell all types flow monitoring, loggers and
We are also suppliers
of the many types of flow loggers and meters on the market.
Our equipment comes
with a 1 year warranty through our suppliers
We are currently setting up a system,
where you may opt to have your data brought back to our database,
and you can view your reports online.
This is useful for those operating
with consent conditions that require day to day monitoring. This
can also be a useful tool for on-farm management.
Data can be kept confidential, requiring a username/ password
to access the information.
We can monitor:
• Water level
• Pump flow rates
• Soil moisture
• Wind speed/Direction
• Water Quality Parameters
This service will be operating in the
very near future, please inquire if you are interested.