Kan. Admin. Regs. § 5-1-4

Current through Register Vol. 43, No. 49, December 5, 2024

Section 5-1-4 - Water flowmeter specifications

(a) Each water flowmeter required by the chief engineer, or required pursuant to a regulation adopted by the chief engineer, on or after the effective date of this regulation shall meet the following minimum requirements:

(1)

(A) The water flowmeter has been certified by the manufacturer to register neither less than 98 percent nor more than 102 percent of the actual volume of water passing the water flowmeter when installed according to the manufacturer's instructions. This requirement shall be met throughout the water flowmeter's normal operating range without further adjustment or calibration.

(B) The manufacturer has certified to the chief engineer that it has an effective quality assurance program, including wet testing a random sample of production line water flowmeters with water flowmeter test equipment. The minimum number of samples to be tested shall be determined using a confidence interval of 90 percent, an expected compliance of 95 percent, and an acceptable error of two percent. The minimum number of samples of each model that shall be tested shall be calculated by multiplying 1,300 times the annual production of that model of water flowmeter divided by Q. Q equals four times the annual production of that water flowmeter plus 1,300.

(C) The manufacturer has certified that the water flow-meter test equipment described in paragraph (a)(1)(B) has been tested annually and found accurate by standards traceable to the national institute of standards and technology (NIST). Documentation of the testing required in paragraphs (a)(1)(A) and (B) shall be maintained by the manufacturer for a period of at least five years and shall be made available to the chief engineer upon request during normal business hours.

(2) The water flowmeter shall be designed and constructed so that it will meet the following criteria:

(A) Maintain the accuracy required by the chief engineer in paragraph (a)(1)(A) through (C) and K.A.R. 5-1-9(a)(1) ;

(B) be protected by the following:

(i) A seal installed by the manufacturer or an authorized representative of the manufacturer; or

(ii) a way that makes it impossible to alter the totalizer reading without breaking the seal or obtaining the authorization of the manufacturer, an authorized representative of the manufacturer, or the chief engineer;

(C) clearly indicate the direction of water flow;

(D) clearly indicate the serial number of the water flow-meter;

(E) have a weatherproof register that is sealed from all water sources;

(F) have a register that is readable at all times, whether the system is operating or not;

(G) be able to be sealed by an authorized representative of the chief engineer to prevent unauthorized manipulation of, tampering with, or removal of the water flow-meter;

(H) be equipped with a manufacturer-approved measuring chamber through which all water flows. Except for positive displacement water flowmeters, full-bore electromagnetic water flowmeters, and multijet water flow-meters, flow-straightening vanes shall be installed at the upstream throat of the water flowmeter chamber. The flow-straightening vanes shall meet either of the following criteria:

(i) Be designed and installed by the manufacturer, or an authorized representative of the manufacturer; or

(ii) consist of at least three vanes that are longer, when placed parallel to the length of the pipe, than the inside diameter of the pipe, are equally spaced radially on the inner periphery of the pipe, and are wider in diametrical distance than one-fourth of the inside diameter of the pipe;

(I) be equipped with an inspection port if the straightening vanes are not designed, constructed, and installed by the manufacturer or an authorized representative of the manufacturer. The port shall be of sufficient size and placement to allow determination of the following:

(i) The proper installation of the flow-straightening vanes; and

(ii) the inside diameter of the pipe in which the water flowmeter sensor is installed;

(J) remain operable without need for recalibration to maintain accuracy throughout the operating life of the water flowmeter; and

(K) have a totalizer that meets the following criteria:

(i) Is continuously updated to read directly only in acre-feet, acre-inches, or gallons;

(ii) has sufficient capacity, without cycling past zero more than once each year, to record the quantity of water diverted in any one calendar year;

(iii) reads in units small enough to discriminate the annual water use to within the nearest 0.1 percent of the total annual permitted quantity of water;

(iv) has a dial or counter that can be timed with a stopwatch over not more than a 10-minute period to accurately determine the rate of flow under normal operating conditions; and

(v) has a nonvolatile memory.

(3) Each water flowmeter that is required to be installed by the chief engineer, or that was required to be installed as a condition of either an approval of application or an order of the chief engineer, or pursuant to a regulation adopted by the chief engineer before the effective date of this regulation, shall meet the following minimum specifications:

(A) Each water flowmeter shall be of the proper size, pressure rating, and style, and shall have a normal operating range sufficient to accurately measure the water flow passing the water flowmeter under normal operating conditions.

(B) Each water flowmeter shall meet the accuracy requirements of K.A.R. 5-1-9(a)(1) . If the water flowmeter does not meet the accuracy requirements of K.A.R. 5-1-9(a)(1), then the water flowmeter shall meet either of the following criteria:

(i) Be repaired so that it meets the accuracy requirements of K.A.R. 5-1-9(a)(1); or

(ii) be replaced with a water flowmeter meeting all of the requirements of K.A.R. 5-1-4 and installed in a manner that meets the requirements of K.A.R. 5-1-6 .

(b) A water flowmeter installed in the diversion works or a distribution system for a water right authorized for municipal use shall not be subject to the requirements of paragraph (a)(2)(B) if an accurate record of water use can be determined by readings from at least one alternate water flowmeter in the same diversion works or distribution system.

Kan. Admin. Regs. § 5-1-4

Authorized by K.S.A. 82a-706a; implementing K.S.A. 82a-706a and K.S.A. 82a-706c; effective Sept. 22, 2000; amended Oct. 24, 2003; amended May 21, 2010.