C202556 - QA Memo.pdf

OMH01-C202556-3650614

Secondary Disinfection System Operation & Maintenance

Questions and Answers

# Question Answer

1 Are we responsible for providing the containment containers, or will a proper cabinet for the chemicals be provided?

To be answered by OMH.

The building contractor is not providing cabinets.

2 Who will be responsible for signage (Facility Hazard signage)?

Equipment has individual hazard labels. Any additional signage for the room will need to be provided by OMH safety personnel.

3 Are we providing the chemicals prior/for the start-up? The building contractor will be responsible for start up testing. Anything above and beyond start up will need to be provided by others.

4 How will we be transferring chlorine? Are means and method on us; or will there be a transfer pump set up or provided?

No transfer pump is provided. Means and methods are by maintenance contractor or OMH. A remote pump will be necessary to transfer chemicals into the hypo tank.

5 What trade will the prevailing wage be under?

Plumbing, etc.?

Is the prevailing wage only for ‘specialty work’ outside of the scope?

Can you list the specific work that would fall under prevailing wage?

Do we need to submit certified payroll even if we are not obligated to do prevailing wage for the ‘normal scope of work’? If so, how often?

For water treatment contracts, prevailing wage would be required for any repairs or installation of equipment outside of the treatment and monitoring.

Typically, this would be tasks that fall outside the preventive maintenance scope, and into the time and materials. The trade would depend on the labor performed.

Certified payroll is a requirement set by the Office of the State Comptroller and Department of Labor for all NYS contracts involving labor.

Vendors can find additional information regarding prevailing wage and its FAQ on the Department of Labor’s website. Forms and Publications are found here.

6 Will there be an additional containment container provided for the reserve chlorine (refilling)? There’s already a containment container installed but does not appear to have ‘110%’ containment. It is currently too small.

The building contractor will be responsible for providing a properly sized containment container.

7 Will a DR300 Colorimeter be provided for monitoring? This is not provided for in the design.

8 Who will be responsible for the start-up? When will this be occurring?

The building contractor with 14 day notice to the engineer and owner. It is recommended that the O&M contractor be present at start up as well.

9 Will there be any training for us to learn the system? The control system integrator (Johnson Controls) is responsible for providing training during start up to ensure that all systems are operating to trigger any alarm or system faults.

All operation manuals have been provided as part of the submittal process during construction.

There is no formal training provided by CHA/EDR.

https://dol.ny.gov/bureau-public-work-and-prevailing-wage-enforcement-frequently-asked-questions https://dol.ny.gov/bureau-public-work-and-prevailing-wage-enforcement https://dol.ny.gov/bureau-public-work-and-prevailing-wage-enforcement https://dol.ny.gov/public-work-and-prevailing-wage-enforcement-forms

10 Are the pumps alternating, or is one a backup for each system?

Each skid is primary/standby.

11 What is the booster pump feeding – the injection points? Is the copper before and/or right after the pump going to be in contact with concentrated chlorine? Will the pump be in contact with concentrated chlorine?

The water booster does not come into contact with concentrated chlorine.

12 What is the desired target concentration of chlorine? 1ppm measured at bldg. 18.

13 What types of point-of-use filters are currently under the sinks right now in Building 8?

3M™ Under Sink Full Flow Replacement Water Filter 3MFF101. Most of the installations have a hard-piped bypass around the point-of-use filter.

14 Is there remote monitoring available for the system?

Can we make remote adjustments or view the system remotely?

Can we set up our own video/computer (independent server) to monitor the chlorine levels/system remotely if we cannot use their server? It would be completely independent of any building system network/wifi etc.

This will significantly impact labor and is one of the most important questions.

Is there a kill switch if there’s an emergency?

The system is tied into the BMS system. Johnson Controls would need to provide additional feedback regarding what monitoring would be possible.

Remote adjustments would not be possible as the remote monitoring is only available.

Regarding video/computer monitoring, remote systems don't align with OMH guidelines (security issues), but may be discussing

Kill switch is not included. Each pump has an individual switch.

15 Is there a maintenance contract for the system equipment? If so, for how long?

Is there a warranty? If so, how long?

No.

The building contractor is to turn over all warranties for equipment. Equipment Warranty is 1 year from date of substantial completion.

16 Will there be a flushing program (won’t work without it)?

OMH will review recommendation from contractor regarding required flushing, cleaning and frequency.

17 For the tri-annual preventative maintenance – will we be trained on flushing and cleaning the system?

Is there support/contact with the engineer for any troubleshooting with the system?

There is no requirement for this to be provided by

CHA/EDR.

OMH will review recommendation from contractor regarding required flushing, cleaning and frequency.

18 Does the facility have a water management plan?

Can it please be provided?

Will there be a flushing program (won’t work without it)?

Facility has water management plan. Facility can provide it.

OMH will review recommendation from contractor regarding required flushing, cleaning and frequency.

19 How often do we need to be on-site? Monthly and as necessary to refill hypo tank.

20 How often do they want to perform ‘periodic’ sampling? Bacteria? Any specific parameters?

Per Appendix D, Exhibit A, SOP the vendor will be providing a comprehensive Standard Operating Procedure to the facility with guidelines regarding daily, weekly and monthly frequencies of sampling.

The SOP should include industry standard best practices to use as guidelines for monitoring and service. The vendor is responsible for providing parameters that reflect industry standards for bacteria count and other testing metrics.

21 Who in the facility is qualified to perform the daily monitoring?

Per the Bid Quote Sheet the vendor is to provide a training rate in Page 2: Time and Materials Rate. The training rate will be used to provide facility staff with guidance and

Spec says tech needs to be ‘qualified’ training on how to perform tests and monitor the system.

The training should reflect the information provided in the SOP. Once trained that staff member is qualified to perform the daily monitoring

22 Are we providing the lockout tag-outs? Where do they want lockout tag-outs?

Yes, all power originates from panel board LP located in the disinfection room.

23 What is the alarm system for at the front desk? Does this monitor overdosing or monitor multiple items?

This is a common alarm, it monitors multiple items, primarily it will alarm if the system is out of spec.

24 Are there any time constraints on when we can come to the facility?

Facility normal hours – 8:00AM-3:00PM/ Monday- Friday. Off Hours visits need coordinate with facility.

(Sign in at the security desk is required at the beginning and end of each visit to the facility?)

25 What are we responsible for outside of the treatment system? The vault? Tubing under the building to Vault 2? How are we replacing the tubing to the vaults?

O&M would be responsible for maintenance of all of the above.

There is a spare tube to each vault.

26 Bottom drain on the chemical drum cannot be outside of the containment area.

Valve at that location can be easily opened and dump the chlorine on the ground.

The existing drain should not be located outside of the containment pallet and will need to be addressed by the building contractor.

27 Is there a double interlock within the system?

If so, what is it?

How can it be tested it is functioning? Electrical?

We need additional information regarding the intent of this question. Monitoring is occurring in 2 separate locations, at the disinfection room as well as in building 18 at the remote point.

Chlorine analyzer is what determines if the system is working and will generate an alarm if the system is out of spec.

28 What happens if the vault fills with water? Will there be a pump installed in there?

You will need to provide a battery powered aux pump to remove water.