Virginia Administrative Code › Title 12 - HEALTH › Agency 5 - DEPARTMENT OF HEALTH › Chapter 590 - WATERWORKS REGULATIONS › Section 12VAC5-590-570 - Operational reporting requirements

Current through Register Vol. 40, No. 24, July 15, 2024
A. Monthly operational reports.
1. A classified waterworks is required to
				report monthly information to the department no later than the 10th of the
				month following the month during which the monitoring period
				occurred.
2. A classified
				waterworks using conventional filtration shall report using the monthly
				operating report (MOR) form approved by the department. All other classified
				waterworks shall report the required information specified in Tables 570.1
				through 570.14, based on the treatment processes employed. Monitoring data
				shall be collected for each day the operating staff attend to the operation of
				the facilities.
3. To determine if
				a waterworks using UV reactor systems is operating within validated conditions
				designed in accordance with 12VAC5-590-1005, the following parameters shall be
				monitored and reported:
(i) on/off status for
				each reactor;
(ii) flow rate
				through reactor train;
(iii) UV
				intensity as measured by a UV sensor;
(iv) lamp status;
(v) lamp age; and
(vi) UV transmittance. The operational set
				points shall be reported if set point control is used. The calculated UV dose
				shall be reported if other than a set point control is used.
4. An unclassified waterworks is
				required to report quarterly the following information specified in Table
				570.1, where applicable, to the department no later than the 10th of the month
				following the calendar quarter during which the monitoring period occurred.
5. An unclassified waterworks that
				is using any of the treatment processes described in Tables 570.2 through
				570.14 is required to report no later than the 10th of the month following the
				calendar month during which the monitoring occurred. The report shall contain
				the required information specified in Tables 570.1 through 570.14 based on the
				treatment processes employed. The monitoring data shall be collected at a
				minimum frequency as established by the department.
6. The department may vary the reporting
				requirements on a case-by-case basis.
Table 570.1
Baseline Data -- All
							 Waterworks
Public water system ID no.
System name
Reporting month and year (reporting quarter and
							 yeara)
Location (county)
Number of connections, monthly average (maximum for
							 reporting perioda)
Population served, monthly average (quarterly average
							 and maximum daya)
Total source water withdrawn, gpd
Total source water treated, gpd
Total finished water produced, gal/month (for each
							 entry point) or
Total water purchased, gal/month (at each consecutive
							 connection)
Operator name (printed and signature)
Operator classification (Class 1 to Class
							 6)
Operator DPOR certification no.
Name and contact information of the emergency contact
							 person (text, voice phone number)
Required for an unclassified
							 waterworksa
Table 570.2
Chlorine Disinfection
Chlorine compound used (chlorine gas, calcium
							 hypochlorite or sodium hypochlorite)
Amount of chlorine compound used at each application
							 point, lb/day
Residual disinfectant concentration (measured as
							 total chlorine, free chlorine, combined chlorine, or chlorine dioxide) at entry
							 point, mg/L
Chlorite concentration (if chlorine dioxide is used),
							 daily measurement at entry point, mg/L
Table 570.3
Chlorine Residual in the Distribution
							 System
Chlorine compound used (chlorine gas, calcium
							 hypochlorite or sodium hypochlorite)
Residual disinfectant concentration, measured as
							 total chlorine, free chlorine, combined chlorine, or chlorine dioxide, mg/L
							 (collected with each total coliform bacteria sample, in accordance with
							 approved sampling plan)
Table 570.4
Rechlorination in Distribution
							 System
Chlorine compound used (chlorine gas, calcium
							 hypochlorite or sodium hypochlorite)
Amount of chlorine compound used at each application
							 point, lb/day
Free chlorine residual concentration before
							 rechlorination, mg/L
Free chlorine residual concentration after
							 rechlorination, mg/L
Free chlorine residual, mg/L (measured and reported
							 with each total coliform bacteria sample, in accordance with approved sampling
							 plan)
Table 570.5
Iron and Manganese Treatment by
							 Oxidation, Detention and Filtration
Source water iron and manganese concentrations, mg/L
							 (each source)
Oxidant amount used, lb/day
Finished water iron and manganese concentrations,
							 mg/L (each filter)
Finished water pH (each filter)
Filter hours between backwash (each
							 filter)
Table 570.6
Iron and Manganese Treatment by Ion
							 Exchange
Ion exchange material (type, manufacturer, and
							 product name)
Source water iron and manganese concentrations, mg/L
							 (each source)
Finished water iron and manganese concentrations,
							 mg/L (each unit softener)
Finished water pH (each unit softener)
Head loss, psi (each unit softener)
Regeneration date and method (each unit
							 softener)
Backwash date and duration of washing (each unit
							 softener)
Backwash rate, gpm (each unit softener)
Table 570.7
Sequestration of Iron and
							 Manganese
Chemical used (manufacturer and product
							 name)
Quantity used, lb/day (average)
Source water iron and manganese concentrations, mg/L
							 (each source)
Finished water (entry point) iron and manganese
							 concentrations, mg/L
Finished water (entry point) treatment chemical
							 concentration, mg/L
Treatment chemical residual concentration, mg/L
							 (value at distal end of distribution system, report at same frequency as free
							 chlorine residual testing)
Table 570.8
pH Adjustment or Corrosion Control by
							 Chemical Addition
Chemical used (manufacturer and product
							 name)
Quantity used, lb/day (average)
Source water pH
Finished water (entry point) pH
Finished water (entry point) treatment chemical
							 concentration, mg/L (if required water quality parameter for compliance with
							 lead and copper)
Table 570.9
Cation Exchange Softening
Cation exchange material (type, manufacturer, and
							 product name)
Regeneration date and method (each unit)
Backwashing date and duration of washing (each
							 unit)
Softener influent hardness, mg/L as
							 CaCO3 (each source)
Softener effluent hardness, mg/L as
							 CaCO3 (each unit)
Stabilization chemical type, weight, daily
							 dosage
Finished water (entry point) pH
Finished water (entry point) alkalinity,
							 mg/L
Finished water (entry point) hardness, as
							 CaCO3
Table 570.10
Fluoridation
Chemical used (manufacturer and product
							 name)
Fluoride used, lb/day
Fluoride dosage, mg/L (daily)
Water treated, MGD
Finished water (entry point) fluoride concentration,
							 mg/L (maximum, minimum, and average)
Table 570.11
Microfiltration or
							 Ultrafiltration
Hours unit in operation
Source water flow, gpd
Filtrate volume, gpd
Recirculated during suspension mode (volume or
							 percent of feed flow, per day)
Waste volume, gpd
Maximum stabilized flux,
							 gpd/ft2
Source water turbidity, NTU bench test
							 (daily)
Source water turbidity, NTU in line (collected at
							 same time as bench test)
Source water turbidity, NTU in-line (maximum
							 daily)
Source water alkalinity, mg/L as
							 CaCO3 (daily)
Source water hardness, mg/L as
							 CaCO3 (daily)
Source water temperature,°C (daily)
Source water pH (daily)
Filtered water turbidity, NTU bench test
							 (daily)
Filtered water turbidity, NTU in line (collected at
							 same time as bench test)
Filtered water turbidity, NTU in line (maximum
							 daily)
Pressure loss across pre-filter, psi (daily) (if
							 pre-filters are automatically cleaned, reporting is not required)
Number of membrane modules in use (daily)
Direct integrity test start time (daily)
Direct integrity test starting pressure, psi (each
							 membrane unit, daily)
Direct integrity test final pressure, psi
							 (daily)
Direct integrity test duration, minutes
							 (daily)
Direct integrity test pressure decay rate, psi/minute
							 (daily)
Direct integrity test Log Removal Value
							 (daily)
Trans-membrane pressure, psi (daily)
Trans-membrane pressure before clean-in-place,
							 psi
Trans-membrane pressure after clean-in-place,
							 psi
Cleaning solution used (manufacturer and product
							 name)
pH of rinse water after clean-in-place
Calibrations completed (itemized instruments with
							 dates completed)
Module repairs or replacements (itemized with dates
							 repairs or replacements)
Entry point log inactivation of Giardia by
							 disinfection (daily)
Table 570.12
Reverse Osmosis
Hours unit in operation
Pre-filter inlet pressure, psi (daily)
Pre-filter outlet pressure, psi (daily)
RO Inlet pressure, psi (daily)
RO outlet pressure, psi (daily)
Total permeate flow, gpd
Concentrate flow (bypass), gpd
Finished water flow, gpd
Total finished water (entry point) flow,
							 gpd
Pre RO TDS, mg/L (daily)
Post RO TDS, mg/L (daily)
Pre RO turbidity, NTU (daily)
Post RO turbidity, NTU
Pre RO conductivity, µS/cm (daily)
Post RO conductivity, µS/cm (daily)
Finished water conductivity, µS/cm
							 (daily)
Source water pH (daily)
Permeate pH (daily)
Finished water (entry point) pH (daily)
Module repairs or replacements (itemized with dates
							 of repairs or replacements)
Table 570.13
UV Disinfection
All waterworks using ultraviolet (UV) disinfection
							 must report the following:
Total run time, hours (per unit)
Lamp status for each reactor train
Lamp age for each reactor train
Total production, MGD or gpd
Flow Rates, minimum, maximum and average, MGD or gpd
							 for each reactor train
To receive disinfection credit, the following shall
							 also be reported:
Number of off-specification events
Total off-specification volume, gal
Percent off-specification volume
UV Intensity setpoint, W/m2 (if using intensity
							 setpoint approach, daily)
UV Intensity for each reactor, minimum, W/m2 (if
							 using intensity setpoint approach, daily)
UV Intensity sensor calibration date for each
							 reactor
Required dose, mJ/cm2 (if using calculated dose
							 approach)
UV Transmittance (UVT) for each reactor, daily
							 percentage (if using calculated dose approach)
Calculated dose for each reactor, daily minimum,
							 mJ/cm2 (if using calculated dose approach)
Validated dose for each reactor, daily minimum,
							 mJ/cm2 (if using calculated dose approach)
UVT analyzer calibration date (if using calculated
							 dose approach)
UV intensity sensor correction factor
Table 570.14
Ozone Disinfection
All waterworks using ozone disinfection must report
							 the following:
Ozone applied, lb/day and mg/L.
Bromate concentration (mg/L), at the entry point to
							 the distribution system, monthly.
To receive disinfection credit, the waterworks shall
							 also report:
Minimum ozone concentration
							 Cinitial from first sample point (Effluent Method) or
							 Cgeo (Log Integration Method) in all contactors during
							 peak flow, daily.
Minimum and average ozone concentration
							 Cfinal (mg/L) for each contactor in service,
							 daily.
Log Inactivation by ozonation, for Giardia, virus
							 and, if applicable, Cryptosporidium, daily at peak flow and the minimum CT,
							 daily.