Pramitol 25E actually can be shipped to Colorado.
You could potentially use a hose-end sprayer to apply Pramitol 25E if you can correctly calibrate your sprayer and avoid any potential contact or runoff to any desirable plants. For susceptible perennial grasses, you would use 12 - 18 oz per 1,000 square feet in sufficient water. For hard-to-kill perennial weeds and grasses, you would use 22 - 29.4 oz. per 1,000 sq ft. It is most important to use the correct amount of herbicide for the area you are treating and then using sufficient water or rainfall to irrigate it into the soil than it is to use a specific amount per gallon of water. Keep in mind that Pramitol 25E is generally noncorrosive to equipment, but may cause swelling or more rapid deterioration of hoses and fittings containing natural rubber. Please refer to the product label for complete application instructions.
We would recommend keeping Pramitol 25E Herbicide applications at least 10 feet away and do not spray over the top if open, cover during application to prevent drift/over spray from contacting
The Pramitol 25E has such a long soil residual that you can't really predict how far it may move so would not be advised to apply around anything desirable nor around edibles.