Sanitary District #4



Tony Skof, Superintendent 262-798-8629
Veronica LaGuardia, Utility Clerk 262-798-8631


Sanitary District No. 4, the water and sewer utility in the Town of Brookfield, was created in 1988.  As of January 1, 2015, we have a customer base of over 2,300.  The distribution system consists of two water towers and two ground storage reservoirs.  Our water comes from the shallow dolomite aquifer.  We have six wells which all flow through filters to remove the iron that is predominant in the shallow aquifer.  Because of the water quality, we are only required to add a little chlorine for disinfection and the water is ready for the distribution system.  On an average day, the Sanitary District provides the Town of Brookfield with 1.2 million gallons of water.

The office staff, which is now located within the town hall, includes a full-time bookkeeper, Julie Scariot.  Field operations are manned at our water tower location by Superintendent Tony Skof and two operators.  The Sanitary District's DNR licensed operators are here to ensure the excellent water quality 24 hours a day, every day of the year.  We are committed to ensuring the quality of your water.

Our goal is to provide you with a safe and dependable supply of drinking water at a reasonable price.  We make continual efforts to improve the water treatment process and protect our water resources.

Sanitary District #4 is committed to public health and safety. COVID-19 has had no effect on the Town of Brookfield’s water supply and our operations will continue as normal. The US EPA and CDC both confirm that there is no evidence that the COVID-19 virus survives the disinfection process for drinking water which is used at all of our wells. We will continue to monitor the situation and events.

Sanitary Sewer Rate Change

Dear Valued Utility Customer,

This letter is to inform you that the Town of Brookfield Sanitary District No. 4 (SD#4) will be increasing its sanitary sewer rates starting with the first quarter billing in 2020. The SD#4 is committed to maintaining fiscal responsibility at all times resulting in sewer rates that are stable for our customers and extremely competitive to our neighbors while providing equal or better services. This is supported by the fact that the last sewer rate change was in 2005 when the rates were decreased! However, with upcoming capital improvement costs and the last 15 years of increasing operation and maintenance costs, we are at a point where an increase to the sanitary sewer rates is necessary.

The sewer fee includes a base quarterly customer charge and volume charge. The following tables summarize the changes to the sanitary sewer rates.

A. Quarterly Customer Charge

Meter Size (inches Current Quarterly Charge 2020 Quarterly Charge
5/8 & 3/4 $ 20.46 $ 30.55
1 $ 34.17 $53.00
1 1/2 $ 68.13 $ 90.50
2 $ 136.47 $ 136.50
3 $ 327.35 $ 327.35
Non-metered $ 60.20 $ 94.40

B. Volume Charge (rate per 1,000 gallons of flow)

Current Volume Charge 2020 Volume Charge
$ 2.13 $ 3.43

The table below provides a comparison of quarterly customer charges of surrounding communities for a typical single family residential home.

Municipality Quarterly Customer Charge Volume Charge Rate/1000 gal Typical Quarterly Cost Total Quarterly Charge
City of Brookfield $67.00 $3.96 $49.50 $116.50
V. Menomonee Falls $70.10 $6.93 $86.63 $156.73
City of Pewaukee $109.70 - - $109.70
Town of Brookfield $30.55 $3.43 $42.88 $73.43
Village of Pewaukee - $6.04 $75.50 $75.50

The new rates are very competitive with our neighbors and remain one of the lowest in the area.

Should you have any questions regarding any of this information, please feel free to contact our office at the telephone number listed at the top of this letter.


Flushing anything besides toilet paper can result in blockages and expensive home plumbing problems. Please DO NOT flush paper towels, facial tissues, napkins, or "flushable" wipes.


You May Now Pay Online


Consumers who wish to make payment for their utility bill to Sanitary District No. 4 using a credit and/or debit card, may do so through AllPaid (formerly GovPayNow).  AllPaid accepts the major credit and debit card brands for payments 24 hours a day, 7 days a week on-site, online or by phone (1-888-604-7888).  Cardholders can make payments on their own behalf or on behalf of friends or family.  They need only have some basic information regarding the payment, easily found on your utility bill.  For added convenience, AllPaid has a fully staffed, bilingual call center available 24/7.  Our location code is 8377 or click the link above.

You must contact and complete your transaction with AllPaid prior to the due date before 4:30 pm as stated on the back of the bill card.

Cardholders pay a service fee at the time of their transaction. This service fee is paid directly to AllPaid.




Water Chemistry & Water Heaters

To answer some questions and comments we often hear, we thought an article on water and water heaters might be helpful. People comment that the water is bad because of the particles on the bottom of ice cube trays or in coffee pots. We can’t fight the fact that there is an enormous amount of calcium in the water. That is because we have shallow wells in the limestone aquifer. We do filter the water to remove the iron but we can’t remove the calcium. That means our water is hard as a brick and needs softening.

There lies the second part of this article. We also hear that “my water heater only lasted, insert any amount of time, because the water around here ate it up.” That now brings us to “Water Heater 101”. Water heaters have steel tanks that are lined with a thin glass coating to prevent corrosion, but the glass coating doesn’t cover the steel inlet and outlet pipes. When installing a new water heater, it is imperative that di-electric connectors are used between the heater and the copper water pipes. These connectors separate the dissimilar metals that can cause corrosion thru electrolysis. Because we know that there will be some sort of corrosion in the tank, water heaters all have “anodes” in them. Anodes, usually made of magnesium, are the sacrificial part of the water heater. Since the anode is consumed easier than the steel tank, they corrode first. If there is too much corrosion or too much time, the anode may go away, and then the tank is next in the corrosion food chain. When salt is added, as in softened water, the anodes corrode more quickly. One more interesting thing, when we heat water as in steam cleaning, the water gets more aggressive. Bear in mind this corrosion should take years to happen.

So where are we going with this is, calcium is not bad, but it makes water hard. Secondly, if the water heater is installed properly, you and your heater should have a long and happy relationship. Thirdly, water is our greatest resource, embrace it.

Now you can impress your friends with your knowledge of anodes, electrolysis and water heaters. Consider this our gift to you.

Hydrant Flushing

This year's fire hydrant flushing will be April 4 through April 22 and October 3 through October 21, 2022.

The flushing accomplishes several tasks from exercising the valves to checking operational status, and removing some trace minerals that can deposit in the distribution system.

New Utility Bills

Sanitary District #4 has instituted new utility bills.  Check the Utility Bills here.

There is also a new Utility Bill schedule. The new schedule for utility billings:

1st Qtr January thru March - Due April 25

2nd Qtr April thru June - Due July 25

3rd Qtr July thru September - Due October 25

4th Qtr October thru December - Due January 25

If the 25th lands on a Saturday, the bill will be due Friday, the 24th, and if the 25th lands on a Sunday, the bill will be due Monday, the 26th. To avoid penalties, payments must be received in the town hall office or tower drop box, by 4:30 pm on the due date. DO NOT put payments in the U.S. Mail Box located in the town hall parking lot. The drop box for payments is located just right of the east entrance of the town hall. Also, note the amount due after the due date printed on the utility bill only reflects the first late fee. A late fee is assessed to the account every month on the 26th.

If you make an online bill payment, please provide your account number so your payment will be applied correctly. Be sure to give your bank and the postal service 7 to 10 days to process and deliver your payment by the due date.

SD #4 News

Technical Specifications of Sanitary District #4

You may download the Technical Specifications for the Town of Brookfield/Sanitary District #4 system here.


Water Rate Schedule

Rates effective 12/1/03  
Quarterly Service Charge based on size of meter
5/8 inch meter $30.08
3/4 inch meter $30.08
1 inch meter $50.92
1 1/2 inch meter $79.57
2 inch meter $114.58
3 inch meter $136.86
Plus volume charge $1.33 per 1,000 gallons used per quarter

Sewer Rate Schedule

Rates effective 03/16/20  
Quarterly Service Charge based on size of meter
5/8 inch meter $30.55
3/4 inch meter $30.55
1 inch meter $53.00
1 1/2 inch meter $90.50
2 inch meter $136.50
3 inch meter $327.35
Plus volume charge $3.43 per 1,000 gallons used per quarter

Quarterly Non-metered - Residential Charge*: $94.40

*Based upon average annual residential flow of 74,500 gallons.

Payment must be received in SD#4 office (located in the Town Hall) by due date at the end of the regular business day. Office Hours: Monday through Friday 8:00 am to 4:30 pm. Date of mailing as indicated by postmark is NOT considered evidence of receipt. For the convenience of our customers, an after-hours drop box is located at the Town Hall and the front gate of the water tower.

A late-payment charge of 1% will be compounded monthly on the unpaid balance. A 10% surcharge will be added to any unpaid balance remaining on November 1, and, if not paid by November 15, will be placed on the property tax bill.

Annual Water Quality

Copies of SD #4's Consumer Confidence Report is available at town hall.  This report is designed to inform you, the customer, about the water that is being supplied through your water utility.  Check out the information that are contained in the Consumer Confidence Reports:

2021 Consumer Confidence Report 2020 Consumer Confidence Report
2019 Consumer Confidence Report 2018 Consumer Confidence Report


Sprinkling Restrictions

The following restrictions apply to ALL our water customers and are in effect at all times throughout the year.  Odd-numbered property addresses are permitted to sprinkle only on odd-numbered days of the month and only between the hours of 6:00 pm and 8:00 am.  Odd-numbered day is determined by whatever day of the month it is at 6:00 pm and carries through to 8:00 am the following day.  The same holds true for even-numbered property addresses on even-numbered days.

Renewal of Private Well Permits

The Sanitary District will be sending notices for 2013 permit renewals the first week of April, along with the necessary information, to property owners telling them that it is time to either renew their private well permits or abandon their well. The renewal packet will consist of three items:


If you would like to know if your property will need to have its well permit renewed this year, please call 262-798-8631.

Although the renewal requires you to have another inspection of your well, you will have to submit certification of only one safe water sample rather than the two safe water samples that were required with your initial permit.  Because the Department of Natural Resources (DNR) holds the water utility responsible for enforcing the permit/abandonment program for private wells, we are especially grateful for your cooperation.  Each year during our annual inspection, the DNR gives us high marks for our efforts and work with the program and that would not be possible without your cooperation.  If you have any questions regarding the renewal of your private well permit.

Change of Address Form

Some residents leave the town for extended vacations or have winter homes away from their permanent address.  In this case, billing and all other SD#4 information can be forwarded to your temporary address.  Fill out the Temporary Change of Address Form and SD #4 will be able to get you current information in a timely fashion.

Mercury & Chloride

Mercury Removal & Chloride Reduction Resources has enacted regulations to reduce the discharge of mercury and chlorides "at the source", to prevent the harmful effects these pollutants have on the environment. Consequently, the Brookfield sewage treatment plant (where Sanitary District No. 4's sewage is treated), is seeking voluntary mercury removal and chloride use reduction activities from all industrial, commercial and residential sources. We have brochures: “Water Softeners and The Environment” and “The Waukesha County Mercury Collection Program” available at the Town Hall. 

Mercury is an extremely toxic, non-degrading substance in the environment. As an environmental contaminant, mercury travels far and wide in air and water. Mercury poisoning has been linked to nervous system, kidney, and liver damage, and impaired childhood development. What can you do to reduce mercury in your wastewater? Remove mercury at the source by bringing your mercury to a hazardous waste or authorized mercury collection site. Mercury can be found in electrical switches, thermostats, fluorescent lights, thermometers, blood pressure gauges, chemical reagents and cleaners. Do not pour mercury down the drain and do not place it in the trash. Please call Waukesha County at (262) 896-8327, or go to for more information.

The DNR is requiring the Brookfield treatment plant to identify significant sources of chloride discharged to the sewer system. State regulation NR211.40 authorizes publicly owned sewage treatment works to regulate chloride discharges from all sources. Voluntary source reduction efforts will be sought from any significant dischargers. What you do to reduce chloride in your wastewater? A major origin of chloride discharge is water softeners and water softening processes. Source reduction efforts include using the minimum salt dosage required during softener regeneration. This is easily accomplished with the use of a regeneration type softener. 

Wastewater Assessment

The Town of Brookfield and the town engineers have completed the Wastewater Assessment for 2005 complete with aerial photos and maps.  Check it out and comment.

Town Calendar


645 N. Janacek Rd.
Brookfield, WI 53045
(262) 796-3788
fax: (262) 796-0339

M-F; 8:00 am - 4:30 pm