Code of Colorado Regulations
1000 - Department of Public Health and Environment
1002 - Water Quality Control Commission (1002 Series)
5 CCR 1002-84 - REGULATION NO. 84 - RECLAIMED WATER CONTROL REGULATION
Section 5 CCR 1002-84.27 - STATEMENT OF BASIS, SPECIFIC STATUTORY AUTHORITY AND PURPOSE: OCTOBER 7, 2019 RULEMAKING; EFFECTIVE JANUARY 14, 2020

I. Definitions

The Commission modified definitions and adopted new definitions in Regulation 84. The following definitions were modified to increase clarity or to achieve consistency with other revisions: "Agricultural Irrigation", "Resident-Controlled Landscape Irrigation", "Treater" and "User." The definition for "Agricultural Irrigation" was amended to include food crops and hemp. The definition of "Resident-Controlled Landscape Irrigation" was changed to be more specific about what a residence is, and to match the new definition of Resident-Controlled Food Crop Irrigation". The definition of "Treater" was amended to include inspectors that work for Treaters to clarify that inspection requirements by the Treater could be completed by an employee of the Legally Responsible Person on the NOA.

The following definitions were added: "Commercial Food Crop Growing Operation", "Covered Produce", "Cultivator", "Edible Hemp", "Flood and Sheet Irrigation", "Industrial Hemp", "Management User", "NonCommercial Food Crop Growing Operation", "Non-Edible Hemp", "Resident-Controlled Food Crop Irrigation", "Site", "Site Manager" and "Visitor". The new definitions were added to reflect references for the new requirements and approved agricultural uses in Regulation 84.

II. Food Crops

The Commission adopted separate definitions, treatment and best management practice requirements for Commercial Food Crop Growing Operations (e.g. large farms) and Non-Commercial Food Crop Growing Operations (e.g. community gardens, community supported agriculture, etc.). The Commission has relied upon the Food Safety Modernization Act, Produce Safety Rule ("PSR") to differentiate between Commercial Food Crop Growing Operation and Non-Commercial Food Crop Growing Operations. Generally under the PSR, when a farm's average annual monetary value of produce sold during the previous 3-year period is more than a certain inflation-adjusted number (currently $26,999), the farm is covered by the PSR; if it is below that number, the farm is not regulated by the PSR.

The Commission adopted the same distinction to reduce uncertainty and overlapping requirements for farmers: if the PSR applies to a farm, it is a Commercial Food Crop Growing Operation under Regulation 84; if the PSR does not, it is a Non-Commercial Food Crop Growing Operation. Note, however, the PSR's rules only apply to certain crops that the federal government has determined are most likely to be consumed raw. So a farm that grows wheat may be above the profit threshold, covered by the PSR, and be a Commercial Food Crop Growing Operation under Regulation 84, but none of the PSR's rules would apply to that farm because it only grows wheat.

III. Commercial Food Crop Growing Operations

Colorado House Bill 18-1093, the food crop reclaimed water law, directs the Commission to allow Categories 2 and 3 reclaimed water for the irrigation of Commercial Food Crop Growing Operations.

Under the authority of the Food Safety Modernization Act, the U.S. Food and Drug Administration has established regulations known as the Produce Safety Rule ("PSR"), which establish food and worker safety rules, including for water quality and crops most likely to be eaten raw. Colorado House Bill 19-1114, which became law in 2019 authorizes the Colorado Commission of Agriculture to seek, accept and expend federal funds in order to implement the PSR in Colorado.

The Commission is requiring that Commercial Food Crop Growing Operations comply with the applicable portions of PSR, 21.C.F.R. Part 112 [84.9(A)(29)], along with a number of additional conditions in 84.9(A) relating to signage, education, and public access. Under the PSR, reclaimed water would be treated like other non-potable water sources for covered produce under the PSR. The PSR has specific requirements for personnel qualifications and training, health and hygiene, water quality requirements and testing, growing, harvesting, packing and holding activities, compliance and enforcement provisions and equipment, tools, buildings and sanitation requirements. Additionally, the PSR does not allow irrigation of sprouts with water at the quality of Categories 2 or 3.

The Commission has determined that implementation of the PSR for Commercial Food Crop Growing Operation, rather than adoption of a fully separate regime for reclaimed water at these farms, will create no greater risk to public health or the environment than previously authorized uses if implemented properly and fully along with implementation of the requirements in Regulation 84. The Commission acknowledges that some crops are not considered to be eaten raw and are not covered under the PSR. These crops will still be required to implement the additional conditions in 84.9(A) described below for Non-Commercial Food Crop Growing Operations.

The Colorado Department of Agriculture is planning on conducting a rulemaking in the coming years to incorporate the federal PSR into its state regulations. The Commission included the term "applicable" in 84.9(A)(29) to convey that not all provisions of the PSR, as implemented by the State of Colorado, may be relevant to Regulation 84. Once the Colorado Department of Agriculture adopts such regulations, the Division may request a written-only rulemaking to incorporate references to those new regulations into Regulation 84 to better align the state PSR with Regulation 84.

In addition to the PSR requirements, the Commission is requiring education and training for employees, cultivators and visitors for sites irrigating Commercial Food Crop Growing Operations with reclaimed water [(84.9(A)(13)]. Education and training include, at minimum, that non-potable reclaimed water is being used, it is not suitable for drinking, information about the best management practices and that produce should be washed with potable water and/or water with no detectable generic E. coli after harvesting produce and prior to consuming produce. Additionally, a hand washing station and/or hand sanitizer containing at least 60% alcohol must be readily available at the Site, and education per 84.9(A)(13) must state that hands and produce should be washed with potable water as soon as it is accessible, and that hand sanitizer is not equivalent to washing hands and produce with potable water. [84.9(A)(17)].

The Commission required that harvesting and public access shall be prohibited in areas where irrigation is occurring resulting in wet soils and/or crops [84.9(A)(21)]. These requirements will reduce the potential for ingestion, inhalation and dermal exposure to pathogens and will protect Users, Cultivators, employees and Visitors against potential illness.

IV. Non-Commercial Food Crop Growing Operations

The Commission adopted additional requirements for Non-Commercial Food Crop Growing Operations because there will be not be oversight under the PSR at these sites, and the general public is more likely to be interacting with irrigation water, soils and food crops at these sites. The Commission has determined that the level of reclaimed water treatment approved on November 6, 2018 for the use of toilet and urinal flushing (84.8, referred to here as "Category 3 Plus") will also be required for Non-Commercial Food Crop Growing Operations and Resident- Controlled Food Crop Irrigation. Category 3 Plus reclaimed water treatment removes more pathogens and particulates than Categories 1, 2, and 3. In the 2018 toilet and urinal flushing rulemaking, the Commission adopted the more stringent Category 3 Plus treatment requirements to address the risk of a person accidentally ingesting up to 2 liters of the reclaimed water per year from cross connections within buildings. The Category 3 Plus treatment requirements are based off of, yet not identical to, California Title 22 Disinfected Tertiary reclaimed water whereby the treatment requirements were established through a microbial risk assessment ("MRA"). California's Disinfected Tertiary reclaimed water is considered appropriate to irrigate food crops that are commercially processed and non-commercially processed.

Despite the additional treatment, the Commission recognizes that there is a risk of using Category 3 Plus reclaimed water for the use of food crop irrigation. Wastewater streams contain varying pathogen loads, and an MRA has not been conducted in Colorado. In addition, the Commission is not requiring any kind of disinfection residual or disinfection flushing in the reclaimed water distribution system, meaning that the pathogen load in the water at a Non-Commercial Food Crop Growing Operation site has the potential to be higher than it was at the treatment plant's point of compliance. Nor is the Commission generally requiring E. coli monitoring at those Non-Commercial Food Crop Growing Operation sites (with the exception of some BMPs, see below), meaning that the pathogen loading at those sites is likely to remain unknown. In sum, at this time, local data does not exist to accurately assess the risk of using Category 3 Plus reclaimed water to irrigate Non-Commercial Food Crop Growing Operation. Therefore, the Commission has worked to mitigate against some of these unknown risks through the imposition of BMPs.

The Commission adopted a BMP that for sites that use hoses for reclaimed water irrigation, one supervising adult must be present with children in eighth grade and younger to oversee the appropriate use of reclaimed water use for each active hose/hose spigot. The Commission also required that children in eighth grade and younger must be supervised by an adult that has undergone training per 84.9(A)(13). Youths that are in ninth grade and older may be on a site without supervision only if they have received training per 84.9(A)(13). These requirements were established to ensure that children working in a garden will have adequate supervision. Supervision is needed to ensure that these children do not eat food directly out of the garden without washing it, follow handwashing or hand sanitizer protocols, and that children properly use hoses. The Commission determined that these requirements will help to minimize risk of potential illness for children. This restriction contains allowances for large sites and would not apply at all if the reclaimed water at the site is shown to meet the Category 3 standard for a year (no E. coli detected in at least 75% of the samples within a month, no sample exceeds 126 cfu E. coli per 100 mL. [84.9(A)(19)]).

The Commission also adopted the PSR's restrictions on the irrigation of sprouts at Non- Commercial Food Crop Growing Operations [84.9(A)(22)]. The Commission adopted this restriction because the warm and humid conditions used for sprouting are uniquely ideal for the growth of bacteria, including Salmonella, Listeria, and E. coli.

The Commission required that potable water supplies and soap or hand sanitizer (if allowed by the PSR) be on or near a site using reclaimed water for Cultivators and Visitors to be able to wash their hands after harvesting crops and/or being present on the Site. This requirement is necessary to prevent hand to mouth ingestion of pathogens and is protective of public health. This requirement does not apply to Resident-Controlled Food Crop Irrigation because a residence must have a potable water spigot on the exterior of the residence [84.9(A)(17)].

The Commission decided that if E. coli and/or turbidity standards exceed the required standards in Regulation 84 at Point of Compliance, Treaters shall notify the Legally Responsible Entity or person, and the Legal Responsible Entity or person must notify all Site Managers and Management Users [84.9(A)(33)]. Users should be informed that water quality standards are not being met to take proper precautions while continuing to use reclaimed water to irrigate.

The Commission adopted the provision that hose bibs must be inaccessible when they are not in use to prevent any person(s) that are not a trained user to potentially collect water for drinking purposes [84.9(A)(18)].

The Commission adopted more frequent inspection requirements for Non-Commercial Food Crop Growing Operations, as well as a new role (Site Manager) to ensure proper implementation and enforcement of Regulation 84 [(84.9(A)(34)]. The initial inspection by the Treater prior to beginning irrigation is to ensure that all of the proper best management practices are set up and in place for irrigation (e.g. appropriate signage, marked appurtenances, lock box for hose bibs, etc.) The second inspection that must occur after irrigation has started within 30 days of the first inspection is required to ensure that the practices and requirements that were verified in the initial inspection are being implemented. Site Manager inspections are required every two weeks to continue to ensure that best management practices and requirements are being met throughout the entire irrigation season. Both inspections by the Treater, and frequent inspections by the Site Manager help to ensure that implementation of the requirements in Regulation 84 are being met to protect public health and the environment.

Due to the fact that some Division inspections of Non-Commercial Food Crop Growing Operation Sites (like for community gardens) may take place when there is not a representative of the user or treater present at the site, the Commission added a provision to identify the process for an authorized representative from the Division to also submit inspector credentials before any inspection upon issuance of the NOA, as required by CRS 25-8-306, [84.9(A)(32)]. If persons are present at the site at the time of the inspection, the Division representative would also be required to present their inspector credentials at the time of the inspection.

V Resident-Controlled Food Crop Irrigation

The Commission also adopted a number of unique requirements for Resident-Controlled Food Crop Irrigation, because of the specific management and compliance challenges of this structure.

The Commission required that a Management User must be designated to carry out responsibilities and conduct inspections. The Management User must be knowledgeable about the requirements in Regulation 84 in order to enforce the regulation and take action on violations of the regulation. The Management User could be a Homeowners Association representative, Condominium Association representative, landlord, etc. [84.9(A)(26)]. The Commission decided to require this to ensure the tiered oversight approach was applied to Resident-Controlled Food Crop Irrigation sites for protection of public health and the environment.

The Commission required that Management Users provide all property owners and renters with an educational manual and verbal education prior to a new resident occupying the residence. The education requirements are the same as those required in [84.9(A)(13)]. The property owner and/or renter must sign a document acknowledging that they received education, and the Management User must keep copies of the signed documents on site. If a property is sold or rented to another User, the new residents must receive the same education and sign the acknowledgement document [84.9(A)(27)]. The Commission felt that this was the most adequate way to ensure new tenants are aware that non-potable water is being used to irrigate, and to make them aware of the safety protocols to implement to minimize risk at residential sites.

The Commission required that a potable water supply spigot be available on the exterior of the residence so that potable water can be used should the Treater's reclaimed water not meet the water quality standards in Regulation 84 at any point in time [84.9(A)(24)].

The Commission adopted a provision that Management Users must maintain up to date maps and/or records of the locations, number and acreage of sites where reclaimed water is being used to irrigate food crops and landscapes, and update the Treater of this information annually [84.10(B)(2)(a)(ii)]. The Commission understands that the Division will work with Management Users regarding how to calculate acreage and agronomic rates in a streamlined manner. Working with the Management User may include considerations of variances regarding these calculations.

VI. Hemp

The Division met with hemp workgroup stakeholders to discuss irrigation of edible and nonedible hemp and the hemp industry recommended the following: Category 1 reclaimed water only be used for rotational crops which are crops used to reduce soil erosion, increase soil fertility and increase crop yield for the next crop to be grown; Categories 2 and 3 reclaimed water to be allowed for irrigation of hemp to be used for fiber products; and Category 3 Plus to be allowed for irrigation of hemp to be used for edible and dermal products. Hemp stakeholders also recommended that clones not be irrigated with reclaimed water [84.9(A)(22)]. The Commission adopted these recommendations.

The Commission required that potable water supplies and soap or hand sanitizer be on or near a site using reclaimed water for Users and Visitors to be able to wash their hands after harvesting crops and/or being present on the Site. This requirement is necessary to prevent hand to mouth ingestion of pathogens and is protective of public health. The Commission also required that if the hand washing supply is a portable hand washing station, the used water must be disposed of in an area whereby it will not come into contact with the crops, soils or infiltration into soils near crops because this is a requirement in the PSR. Also, the portable hand washing station must stay adequately full of potable water for Users [84.9(A)(17)].

The Commission required that harvesting and public access shall be prohibited in areas where irrigation is occurring resulting in wet soils and/or crops [84.9(A)(21)]. The Commission also added a requirement that harvesting of produce not occur where irrigation is occurring and making the soil and/or plant wet [84.9(A)(21)]. These requirements will reduce the potential for ingestion, inhalation and dermal exposure to pathogens and will protect Cultivators, employees and Visitors against potential illness.

VII. Additional Discussion Applicable to Multiple New Uses