DDW-2024-012633

October 29, 2024
Jason Helm
Granger Hunter Improvement District
2888 South 3600 West
West Valley City, Utah 84119
Subject:Plan Approval, Construction of Anderson Water Treatment Plant (TP030), Anderson Chlorinator (TP031), System #18007, File #13585, DWSRF #3F2017E
Dear Jason Helm:
The Division of Drinking Water (the Division) received the plans and specifications for the construction of the Anderson Water Treatment Plant (TP030) from your consultant Christina
Osborn of JUB Engineers Inc. on May 15, 2024. The updates on the project were received by Division staff on October 09, 2024. The project meets the conditions for issuance of plan approval.
Our understanding of this project is that Granger Hunter Improvement District (GHID) is receiving complaints of well water aesthetics in their drinking water system. It was discovered
that many of the district’s wells have elevated (above the SMCL) levels of iron, manganese, and ammonia. The Anderson Water Treatment Plant is designed to reduce ammonia, manganese,
and iron from the Granger-Hunter Improvement District (GHID) Taggart Well #16 (WS017) and a future Watts Well #18 (WS020).After investigations by Confluence Engineering Group, including
pilot testing, and J-U-B Engineers on a similar site near to Taggart Well #16, GHID selected pressure filters to address the elevated iron and manganese levels in their drinking water.
The horizontal pressure filters include filtration with media coated with manganese. The specific media is GreensandPlus™ media. The proposed water treatment plant will be designed to
reduce ammonia, manganese, and iron from Taggart Well #16 (WS017) and future Watts Well #18 (WS020).The treatment process will consist of breakpoint chlorination, using an onsite sodium
hypochlorite generation system (OSHGS), producing a 0.8% sodium hypochlorite solution, at each well house followed by filtration at loading rates between 8 and 12 gallons per minute/square
foot (gpm/sf) for removal of iron and manganese at the Anderson treatment plant (TP030). The treatment plant includes two pressure filters, each with 3 isolated and independent cells.
Both filters will be bedded with media consisting of GreensandPlus media, then having an anthracite cap. The GreensandPlus media will have a manganese dioxide coating that allows contact
oxidation of dissolved manganese.Based on the initial pilot study performed by Confluence Engineering Group from 7/25/2019 to 8/5/2019 and the proof-pilot performed by Kurita America,
Inc. (previously Tonka) from 2/2/2021 to 2/5/2021 for the Rushton Treatment Plant (TP027), it was demonstrated that this filtration process could reduce iron and manganese to levels
below 0.1 mg/ l for iron and below 0.015 mg/l for manganese, respectively, when operating at filter loading rates between 5.33 up to 12 gpm/sf. The current levels average 0.05 mg/L of
iron and 0.055 mg/L of manganese. These pilot studies were performed to prove successful operation at loading rates higher than 3 gpm/sf as required by rule R309-535-11(3)(c). The current
ammonia level of the WS017 and WS020 is expected to average about 0.59 mg/l and is targeted at <0.1 mg/l with break-point chlorination dosing by sodium hypochlorite at each of the well
heads.
The WesTech Engineering Horizontal Pressure Filter System with GreensandPlus mediaThe system is designed for n +1 redundancy meaning that one entire filter vessel can be taken offline,
and the remaining vessel can treat up to 3,000 gpm at the maximum filtration rate. In addition, each vessel has three completely isolated cells, which allows the system to continue operating
while one cell is offline (e.g., during backwash) and treats up to the future peak flow of 6,000 gpm in the two pressure vessels combined. In addition, the entire plant can be bypassed
so that wells WS017 and WS20 can continue producing water and pumping it into the distribution system the same as they currently operate. The entire plant and wells may also be taken
off-line, and the district would still be able to meet the demand requirements using their other wells or using additional wholesale water purchased from Jordan Valley Water Conservancy
District (JVWCD).The average flow of the Taggart Well #16 (WS017) has been approximately 2,000 gpm. The existing oxidant (iron, manganese, ammonia plus disinfection at 1.0 mg/L) has
been 7.2 mg/L as chlorine at the dosing rate of 0.8% solution (TP014). This equates to an oxidant demand of 267 pounds per day of chlorine. The existing system (TP014) has a capacity
of 300 pounds per day of chlorine-- the operators have noted that it is difficult to maintain a chlorine residual at the 1 mg/L dose due to the ammonia. To reach breakpoint chlorination
and provide a 1 mg/L chlorine residual, it is estimated that the system should be capable of dosing up to 7.42 mg/L when pumping the maximum flow of ~3,000 gpm. The new dosing requirement
would be approximately 267 pounds per day. The existing 300 pound per day generator has the capacity to supply the chlorine needed for the pump operating at maximum flow.
The new Anderson Chlorinator (TP031) will be completed according to the following:
Anderson Chlorinator (TP031) will be designed to provide disinfection for the water from the Anderson WTP (TP030) and will be used to pre-oxidize water for iron, manganese, and ammonia
along with post-chlorination.
The chlorinator will be an onsite generation process that converts a brine solution using electricity to a sodium hypochlorite solution.
The chlorinated water enters the distribution system (DS001) to maintain residual chlorine.
The proposed sodium hypochlorite 0.8% solution for disinfection meets the ANSI/NSF 60 standard.
The sodium hypochlorite 0.8% solution will be stored in one (1) 2,100-gallon tank (ANSI/NSF 61 certified) with spill containment.
The proposed design target dose at the chemical addition point (each well) is ~7.2 mg/L or ppm (measured as free chlorine) prior to entering the Anderson WTP. The dose is based on a
maximum flow of 6,000 gpm entering the Anderson WTP (TP030). The chlorination system (TP031) at the Anderson WTP shall be capable of dosing an additional 2 mg/L for pre- or post-filtration
chlorination at 6,000 gpm.
The chlorine dose will be adjusted by a flow paced dosing pump Grundfos DME 375-10 AR. The dosing range is adjusted by a flow paced PID control and the pre-filtration and post-filtration
residual chlorine concentrations. Provisions are also provided to adjust the dose based on the ammonia concentration entering the Anderson WTP.
The Grundfos DME 375-10 AR pump will have a rated injection capacity in the range from 0.125 to 100 gallon per hour (gph), or up to 2,400 gal/day.
The chlorine dosing pump will be electrically wired to the discharge piping to ensure dosing stops when there is no flow.
The target chlorine residual entering the distribution system is 1 mg/L with a minimum of 0.3 mg/L.Detailed project description and the Division’s decision to issue Plan Approval for
the Anderson Water Treatment plant are summarized in the attached Project Overview Addendum.
Secondary Disinfection Requirements
The plan review of the proposed Anderson Chlorinator (TP031) is based on providing secondary disinfection. When this chlorinator is installed and placed in operation after the Operating
Permit issuance, the GHID will be required to demonstrate ongoing compliance with the secondary disinfection requirements that are outlined below.
The Division shall be informed by telephone within 8 hours by a water supplier ofthe malfunction of any disinfection facility such that a detectable residual cannot be maintained at
all points in the distribution system per R309-105-18(1)(a).
Please be aware if GHID is found to requireadditionaldisinfection in the future per R309-200-5(7)(a)(i), further regulations will apply. For example, if primary disinfection is required
this will include submitting disinfection CT information showing compliance with 4-log virus inactivation in accordance with the Ground Water Rule in R309-215-16.
Chlorine Monitoring & Reporting Requirements
The water system will be required to meet secondary disinfection requirements once this facility is installed and operating. As a part of these requirements, the water system will need

to continuously maintain a minimum free chlorine residual at each chlorinator Point of Entry (POE) into the system and demonstrate a detectable chlorine residual in the distribution
system.
Secondary Disinfection Requirements and Reporting
Chlorine Residual ‒ Point of Entry (POE) to Distribution System
The POE sampling location will be identified in the Division’s database. The location will be identified during the plan approval process. Maintain a minimum of 0.2 mg/L residual (measured
as free chlorine) at the POE sampling location. [R309-215-16(3)(b)(iii)(A)(I) and (II)]
The chlorine residual concentration measured at the POE sampling location shall not exceed the maximum residual disinfectant level (MRDL) of 4.0 mg/L (measured as free chlorine). [R309-200-5(3)(c)(iv)]Record
and report the lowest daily value of chlorine residual measured as free chlorine at the POE sampling location (EP031). [R309-215-10(1)]Our records show that your water system serves
121,083 people. Please be aware that R309-215-16(3)(b)(iii)(A)(I) requires water systems serving greater than 3,300 people to continuously monitor the POE chlorine residuals. Therefore,
an online analyzer to continuously monitor the POE chlorine residuals entering the distribution system will be needed.
Chlorine Residual ‒ Distribution System (DS001)
This water system must maintain a detectable residualthroughout the distribution system. It is recommended to maintain the chlorine residual above 0.1 ppm in the distribution system.
[R309-520-5]
The chlorine residual measured in the distribution system shall not exceed the maximum residual disinfectant level (MRDL) of 4.0 mg/L (measured as free chlorine). [R309-200-5(3)(c)(iv)]
This water system must take a minimum of three (3) chlorine residual samples per weekat varying locations throughout its distribution system (DS001). [R309-105-10(1)(c)]
Distribution system chlorine residuals must be taken in conjunction with total coliform sampling. [R309-215-10(3)]
Disinfection Report Submission
To demonstrate ongoing compliance with secondary disinfection requirements, the water system must complete monthly operational reports for each active chlorinator using a template approved
by the Division.
The monthly operational reports are submitted quarterly. The reports are due to the Division by the 10th day following the end of each reporting quarter (i.e., January 10th, April 10th,
July 10th and October 10th). The reports can be submitted by hardcopy, fax, or by uploading them to the Division’s chlorine residual reporting form which can be found at MRDL.utah.gov.
Please contact Luke Treutel at [phone] or [e-mail] to schedule training regarding proper reporting.
In addition to monthly disinfection reporting, this water system must submit the monthly average of chlorine residual samples taken in the distribution system. Distribution system chlorine
residual monitoring results are due quarterly by the same compliance dates as the monthly disinfection report and can be submitted via an online form found at mrdl.utah.gov.
Records must be maintained for a minimum of 5 years. [R309-105-17(1)]
We have completed our review of the plans and specifications; stamped and signed byChristina Osborn, P.E., dated June 30, 2021,and find they basically comply with the applicable portions
of Utah’s Administrative Rules for Public Drinking Water Systems in R309. On this basis, the plans for Construction of Anderson Water Treatment Plant (TP030) and Anderson Chlorinator
(TP031)are hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before the facilities of theProject may be put in service. A checklist outlining the
items required for operating permit issuance is enclosed for your information.Approvals or permits from the local authority or the county may be necessary before beginning construction
of this project. As the project proceeds, notice of any changes in the approved design, as well as any change affecting the quantity or quality of the delivered water, must be submitted
to the Division. We may also conduct interim and final inspections of this project. Please notify us when actual construction begins so that these inspections can be scheduled.
Future Monitoring and Reporting Requirements
When the Anderson WTP (TP030) is completed and allowed to be placed into operation after obtaining an Operating Permit from the Division, the GHID will be required to sample the treated
water exiting this treatment plant for Iron, Manganese and Ammonia on a quarterly basis. These samples will need to be analyzed by a certified laboratory.
At that time, at the end of each calendar quarter, this water system will need to submit a quarterly report to the Division. These quarterly reports will need to include the information
of the total volume treated water through the treatment plant. These quarterly reports will be due by the 10th day of the month following the end of each calendar quarter (April 10th,
July 10th, October 10th, January 10th). If you have questions regarding these Iron, Manganese and Ammonia monitoring and reporting requirements, please contact David Kruse at [phone]
[e-mail] assistance.
The project, as described herein, is generally eligible for assistance under the Drinking Water Construction Assistance Program. All change orders will need to be reviewed and approved
for compliance with the Drinking Water Rules and the conditions of this construction approval.

The project may now be advertised for bids. But, as a condition of the project funding, you must not award the contract or proceed with construction until the Division of Drinking Water
has authorized you to do so. This is necessary to comply with applicable requirements and to protect you, as the funding recipient, by ensuring that the contract meets requirements for
funded projects. 

Federal regulations require that a concerted effort must be made to encourage participation of small and disadvantaged business enterprises (DBE) by providing requisite information,
including plans and specifications on the project. To provide opportunities to DBE subcontractors, utilization goals for Minority-owned Business Enterprises (MBE) and Women-owned Business
Enterprises (WBE) have been determined to be 4% and 2%, respectively. As outlined in the contract documents, the prime contractor must submit a list of prepared MBE/WBE subcontractors
to be used on this project and documentation of solicitation efforts with the bid. The prime contractor's efforts to provide opportunities to DBE's must be reviewed and approved by this
office before the contract can be awarded.
This project is also required to comply with provisions outlined in the Davis-Bacon Wage Act, and American Iron and Steel requirements. Please contact Allyson Spevak at [phone]
or [e-mail] for assistance with these requirements.
This approval must be renewed if construction has not begun or if substantial equipment has not been ordered within one year of the date of this letter.
If you have any questions regarding this approval, please contact Nagendra Dev, P.E., of this office, at (801) 68-5296, or me at [phone].
Sincerely,
Michael Newberry, P.E.
Engineering Manager
NDev/mrn/mdbEnclosures –Operating Permit ChecklistProject Overview Addendumcc:Matthias Neville, Salt Lake County Health Department, [e-mail] Osborn, JUB Engineers,
[e-mail] Helm, Granger Hunter Improvement District, [e-mail] Marti, Granger Hunter Improvement District, [e-mail]

Jeremy Gregory, Granger Hunter Improvement District, [e-mail]
Drew Ovard, Granger Hunter Improvement District, [e-mail]
Michael Grange, Division of Drinking Water, [e-mail]
Allyson Spevak, Division of Drinking Water, [e-mail]
Sarah Page, PhD, Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]
Luke Treutel, Division of Drinking Water, [e-mail]
Nagendra Dev, P.E., Division of Drinking Water, [e-mail]
NDev PA Anderson WTP GHID 18007 13585ADDENDUM Project Overview
Granger-Hunter Improvement District (UTAH#18007)
Anderson Water Treatment Plant (UTAH#18007) ) & Blending Plan
R309-200-5 Primary Drinking Water Standards set maximum containment levels (MCLs) based on the protection of human health. While R309-200-6 Secondary Drinking Water Standards recommends
limits, Secondary MCLs, for public water systems dealing with inorganic substances that affect the aesthetic quality of drinking water.
The table below summarizes current secondary MCL standards and historical levels for the well.
Manganese
Iron
pH
Ammonia
Unit
mg/l
mg/l
--
mg/l
Secondary MCL
0.05
0.3
6.5-8.5
N/A
Taggart Well #16 (WS017)
0.055
(0.034-0.074)
0.05
(0.02-0.12)
7.5-7.9
0.59
(0.55-0.70)
Watts Well #18 (WS020)1
-
-
-
-
Note: Watts Well #18 has not been drilled, so its water chemistry is unknown, but assumed to be similar to Well #16.
The table below summarizes the treatment goals of the two wells.
Manganese
Iron
pH
Ammonia
Unit
mg/l
mg/l
--
mg/l
Secondary MCL
0.05 mg/L
0.3 mg/L
6.5-8.5
N/A
Target
<0.015
<0.1

6.5-8.5
<0.1 with 15 minutes contact time
In addition, the EPA put out the following public health notice for manganese:
Too much manganese can increase the risk of health problems, particularly for infants under 6 months old. Infants are more at risk than older children and adults because their brains
and bodies are quickly developing. Formula-fed infants get enough manganese from formula to meet their dietary needs. However, they may get too much manganese (above the recommended
amount for nutrition) in their bodies when formula is mixed with water that contains manganese. Infants exposed to manganese over 0.3 mg/L may experience learning or behavioral problems.
Adults drinking water with high levels of manganese for many years may experience impacts to their nervous system. EPA established a lifetime health advisory level of 0.3 mg/L which
means adverse health effects are not expected below this level. This health advisory is being provided because EPA identified health risks from short-term exposure.
Pilot Testing (Based on Rushton WTP (TP027)
The objective of the Kurita proof pilot at Rushton WTP (TP027) was to gather data needed to demonstrate the performance of their horizontal pressure filter system in order to permit
the design and construction of a more efficient treatment plant. A previous pilot study conducted in 2019 by Confluence Engineering was used to establish the initial design criteria
of the filtration and breakpoint chlorination system. Side-by-side filter columns were filled and pre-conditioned with the specified 18” GreensandPlus media (E.S. 0.30-0.35 mm) with
12” anthracite cap (E.S. 0.60-0.80 mm). Performance was assessed during 24-hour and 48-hour performance runs operating at 8 and 12 gpm/sf loading rates. Sodium hypochlorite was dosed
upstream of the filters to obtain a target free chlorine residual of 0.5 to 1.0 mg/L. In addition, chlorine demand/decay (CDD) tests were performed to assess the increase in total tri-halomethanes
(TTHMs) and haloacetic acid (HAA5) formation over time at times t = 0.5, 2, 24, 72, and 168 hours. Tests were also performed to determine the chlorine dose required to reach breakpoint
chlorination and maintain a free chlorine residual after 5, 15, and 30 minutes of contact time post-filtration. A Taste Study was done in conjunction with the Proof Pilot to assess
the taste of the water at the times indicated previously.
Results from the Proof Pilot demonstrated the following:
Consistently achieved filter effluent iron and manganese levels below the SMCLs and below the target levels of 0.1 mg/L and 0.015 mg/L, respectively, during all performance runs and
loading rates.
Regulated disinfection by-products, TTHM and HAA5, in the filter effluent of both filters were well below their respective MCLs of 80 ug/L and 60 ug/L, respectively. The highest levels
seen in the filter effluents were TTHM = 13.2 ug/L and HAA5 = 7.1 ug/L after 168 hours of holding time.
Filter head loss was not excessive at either loading rate. No Fe/Mn breakthrough was observed during the Proof Pilot Study. The maximum headloss observed for the 48-hour duration runs
at the 8 gpm/sf rate was 80 inches of water (2.9 psid) and at the 12 gpm/sf rate was 129 inches of water (4.7 psid).
The breakpoint chlorination reaction required approximately 15 minutes to reach completion when dosing very near the breakpoint. However, when dosing in excess of breakpoint the reaction
occurred in less than 5 minutes. Based on these results, for startup it is recommended to dose chlorine at a 12:1 chlorine: ammonia ratio plus an additional 1 mg/L chlorine at each
well for the free chlorine residual. This represents a starting dose around 7.2 mg/L chlorine depending on the well.Proposed Design and ProcessesThe proposed treatment plant consists
of the following processes in sequence:Bypass – A bypass line exists in the “Bypass Valve Vault” within the water treatment plant and also at 3100 South. The bypass valves are programmed
to bypass the water treatment plant in the event of an emergency shutdown of the filters and an alarm will be sent to the Operators notifying them of the change. Alternatively, the operators
can initiate a bypass by automatic or manual valve actuation.Pre-oxidation – Each of the two well sites are equipped with an onsite sodium hypochlorite generation system in order to
pre-oxidize the iron, manganese, and ammonia while still serving as a disinfectant. Pre-oxidation at each well provides additional contact time to ensure the breakpoint chlorination
reaction reaches completion before reaching the water treatment plant and distribution system. Additional sodium hypochlorite can also be added pre-filtration at the Anderson WTP to
provide additional chlorine if needed.
Filtration– The pre-oxidation step causes the iron and manganese metals to precipitate into solids, which are then filtered out through the filters. The manganese coated filter media
acts as a catalyst in the oxidation reduction reactions and is sized to remove the particles without causing excessive headloss. The filters are periodically backwashed to remove the
solids from the filter bed. Due to the relatively low concentrations of iron and manganese in the raw water, the Anderson WTP horizontal filtration system is designed to operate at higher
filtration rates. Each of the two (2) horizontal pressure filter vessels are divided into three fully-isolated cells in order to reduce the overall complexity and to minimize the piping
connections, the number of valves, and backwash waste flow.Post-chlorination – The sodium hypochlorite solution generated from the onsite generator at the Anderson WTP is injected post
filtration and then the filtered and chlorinated water passes through into the 24-inch Anderson conveyance line, which serves as a contact pipe. The contact pipe allows for ample time
for both oxidation of the ammonia and disinfection of the water. The post chlorination process is designed to maintain residual chlorine in the distribution system (i.e. for secondary
disinfection purpose) dosing at 1-2 mg/L. Backwash Backwash method: combined air/water backwash.Filter configuration: The multi-cell horizontal pressure filter vessels (two (2), 10-ft
diameter x 40-ft long horizontal pressure vessels each with 3 isolated cells, each can handle up to 4,500 gpm) is designed to backwash sequentially one cell at a time based on terminal
head loss (e.g, differential pressure), elapsed time, or water quality (turbidity).Each filter vessel is equipped with a two‐gauge loss of head panel. The panel has a differential pressure
transmitter, the transmitter will have two set points that can be adjusted by the operator. The first will initiate a backwash call at 3.5 to 5 psid. The second set point will call for
system shut down to protect the underdrain and media from over pressurization at 8 psid.Backwash source: filtered water from in-service cells and the distribution system.Estimated backwash
frequency: 48-72 hours.Once the backwash is initiated, the system performs an automatic backwash on each of the filter vessels in sequence, cell by cell. The backwash generally consists
of the following steps:Filter cell isolation & drain down.Simultaneous air/water backwash (10 minutes, 3-4 gpm/sf (387-516 gpm) water with 2-3 scfm/sf (258-387 cfm) air).Air purge (2
minutes, 3-4 gpm/sf (387-516 gpm)).Re-stratification (3 minutes, 10-15 gpm/sf (1290-1875 gpm)).Filter-to-waste (3.5 minutes at filter loading rate).Backwash waste volume: approximately
9,000 to 13,300 gallons.Flow monitoring:Each filter vessel is equipped with a 16” raw water flow meter to monitor the flow to each vessel.Backwash waste is measured with a 10” backwash
flow meter.Filter-to-waste is measured with a 6” flow meter.General Proposed Treatment Requirements:Secondary Disinfection
The water system currently voluntarily chlorinates, there is no record that the system has ever been required to chlorinate and is currently working on providing raw water sampling to
verify chlorination is not required.The project was reviewed against the following requirements.R309-520-7- Chlorine, Additional requirements for Hypochlorite SystemsR309-525- 11, 12,
18, 19, 20, 22 & 23R309-535-11- Iron & Manganese ControlTurbidity Monitoring: A turbidimeter will be installed to provide the ability to monitor combined effluent of the three filters
continuously. The discharge pipe from each filter will have a port to connect the sampling tube so that when turbidity spikes the turbidimeter can connect to a filter to find out which
filter is causing the issue.
The Anderson WTP Treatment Train ProcessesDesign Flow – 6,000 gpm.Pre-oxidation and chlorination (1) – two (2) onsite sodium hypochlorite generation systems at each well, plus one (1)
at the Anderson WTP that can dose for pre-oxidation and post-chlorination.Filter foot-print- The plant has a total of 2 filters with 387 square feet each, for a total of 774 square feet,
and will operate with a filtration rate of 3 up to 12 gpm/sf with one filter cell off-line.Filter depth– 18-inches of Greensand Plus media with 12-inch anthracite cap.Maximum Filter
Backwash – 10-15 gpm/ sf.Post-chlorination dose– Sodium hypochlorite chlorination dose up to 2 mg/L additional chlorine.Finished water from the treatment plant:Point of Entry (POE) location/residual-
0.9 mg/L; POE is located at 2320 South east of Redwood Road.Solids Handling – 4 lbs iron and 10 lbs of manganese per backwash cycle at 6,000 gpm flow.

Utah Division of Drinking Water ― Checklist for Issuing Operating PermitsWater System Name:System Number: Project Description:File Number:
Items 1 through 8 below must be submitted to the Division and found to be acceptable prior to operating permit issuance (unless a water line project meets the requirements of R309-500-7
and is not required to obtain an Operating Permit).☐1.Certification of Rule Conformance by a professional engineer (P.E.) that all conditions of Plan Approval were accomplished, and
if applicable, changes made during construction were in conformance with rules R309-500 through 550☐2.As-built or record drawings incorporating all changes to approved plans and specifications
(unless no changes were made to the previously approved plans during construction)☐3.Confirmation that as-built or record drawings have been received by the water system☐4.Satisfactory
bacteriological samples as evidence of proper disinfection and flushing in accordance with the appropriate ANSI/AWWA standards:
☐ANSI/AWWA C651-14 AWWA Standard for Disinfecting Water MainsTwo consecutive sample sets at least 16 hours apart, none positive (e.g., every 1,200 feet, end-of-line, each branch)☐ANSI/AWWA
C652-11 AWWA Standard for Disinfection of Water-Storage FacilitiesOne or more samples, none positive☐ANSI/AWWA C653-13 AWWA Standard for Disinfection of Water Treatment PlantsTwo consecutive
samples per unit, none positive, no less than 30 minutes apart☐ANSI/AWWA C654-13 AWWA Standard for Disinfection of WellsTwo consecutive samples, none positive, no less than 30 minutes
apart
☐5.Water quality data — Specify the required finished water and/or raw water data to demonstrate WTP performance before an OP can be issued, e.g., arsenic data/interval/frequency/sampling
location.☐6.If applicable, all other documentation that may have been required during the plan review process☐7.If applicable, confirmation that the water system owner has received the
O&M manual for the new facility☐8.If applicable, location data of new storage tank, treatment facility, or source