Does Your Water Actually Need Filtering?
Massachusetts residents face a range of water quality challenges depending on whether they're on municipal city water or a private well. The South Shore is no exception — from elevated chlorine and chloramine levels in city water to iron, hardness, and bacterial concerns in private wells, water quality varies dramatically from street to street and town to town.
The answer to what filter you need isn't one-size-fits-all. A professional water test is the starting point — it tells you exactly what's in your water, so we can recommend the right system rather than overselling equipment you don't need.
City Water vs. Well Water
City / Municipal Water
- Already treated by your municipality, but treatment adds chlorine and chloramines
- Can pick up contaminants through aging pipes on the way to your tap
- May contain PFAS, lead, disinfection byproducts (DBPs)
- Often has an unpleasant taste or odor
- Softening typically not needed — focus on filtration
Private Well Water
- Unregulated — entirely your responsibility to test and treat
- Iron, manganese, and hardness are common in MA wells
- Bacteria (coliform, E. coli) require UV treatment or chlorination
- Radon is a real concern in many South Shore towns
- pH imbalances can cause pipe corrosion and blue-green staining
Common Contaminants to Know About
🏙️ City Water Contaminants
- Chlorine & chloramines (disinfectants)
- PFAS / PFOA / PFOS (forever chemicals)
- Lead (from old service lines & fixtures)
- Trihalomethanes (disinfection byproducts)
- Pharmaceuticals & microplastics
- Sediment & turbidity
🌳 Well Water Contaminants
- Iron & manganese (staining, taste)
- Hardness (calcium & magnesium)
- Bacteria & E. coli
- Nitrates (especially near agriculture)
- Hydrogen sulfide (rotten egg smell)
- Arsenic & radon (naturally occurring)
PFAS: The "Forever Chemicals" in Your Water
Per- and polyfluoroalkyl substances (PFAS) have been found in water supplies across Massachusetts, including several South Shore communities. These man-made chemicals — used in non-stick cookware, firefighting foam, and countless industrial applications — do not break down in the environment or in the human body.
The EPA has set a maximum contaminant level of 4 parts per trillion for several PFAS compounds. Long-term exposure has been linked to kidney and testicular cancer, thyroid disease, immune system disruption, and developmental problems in children.
Standard carbon block filters will not reliably remove PFAS. Effective removal requires activated carbon with specific contact time, reverse osmosis membranes, or specialized PFAS-targeted media. We can test your water and recommend the right system if PFAS is a concern.
Treatment Methods Explained
Different contaminants require different treatment technologies. Here's what each method does — and doesn't do:
- Sediment Filters: The first line of defense. Remove sand, rust, silt, and particulates. Essential for well water and older city plumbing. Typically 5–50 micron rating.
- Activated Carbon (GAC & Carbon Block): Excellent for chlorine, chloramines, VOCs, taste, and odor. Carbon block is denser and more effective. Does not remove heavy metals, nitrates, or most PFAS.
- Reverse Osmosis (RO): Forces water through a semi-permeable membrane, removing up to 99% of dissolved solids including PFAS, lead, nitrates, arsenic, and fluoride. Best used as a point-of-use system at the kitchen sink.
- Iron & Manganese Filters: Oxidation-based systems (air injection, greensand) that remove iron staining and metallic taste from well water. Critical before any downstream equipment.
- Water Softeners: Ion exchange systems that replace calcium and magnesium (hardness) with sodium. Protect pipes, water heaters, and appliances. Well water often requires softening before other treatment.
- UV Sterilizers: Ultraviolet light destroys bacteria, viruses, and cysts without chemicals. Required for any well with bacterial contamination. Does not remove chemical contaminants.
- Acid Neutralizers: Calcite or magnesium oxide media that raises low pH (acidic water) to prevent pipe corrosion and blue-green staining on fixtures — common in MA well water.
Water Testing — Start Here
Before investing in any filtration system, a water test is essential. Testing tells you exactly what's in your water — so you only pay for what you actually need. We can help you arrange testing or interpret your existing results.
- City water basic panel: Chlorine, lead, pH, total dissolved solids, hardness, and PFAS screening
- Well water standard panel: Bacteria (coliform + E. coli), nitrates, iron, manganese, hardness, pH, arsenic
- Well water comprehensive panel: All of the above plus VOCs, radon, PFAS, uranium, and heavy metals
- State-certified labs: We recommend using a Massachusetts DEP-certified laboratory for legally defensible results
Products We Install & Service
We work with a curated selection of professional-grade brands — chosen for reliability, filtration performance, and long-term value. No big-box specials or equipment that clogs in six months.
Rusco
Rusco makes some of the most durable sediment strainers and spin-down filters on the market. Their see-through polycarbonate housings let you monitor buildup, and the stainless steel screen elements are reusable and cleanable — ideal for well water with heavy sediment loads. We install Rusco units as the first stage in whole-house well water treatment systems.
New: Rusco POE1+ Advanced Filtration System — Rusco's latest whole-home solution takes filtration a step further. The POE1+ is equipped with a Contaminant Shield cartridge that removes PFAS (forever chemicals), lead, and chloramine in addition to sediment, scale, taste, and odor. It features a tool-free filter change design, a bypass manifold so you can swap filters without shutting down your water, and a 100% non-metallic rust-proof housing. If you're on a private well or have PFAS concerns on the South Shore, the POE1+ is one of the best whole-home options available.
Atlas Filtri
Italian-engineered Atlas Filtri offers a comprehensive lineup of whole-house filtration housings, multi-stage systems, and specialty media filters. Known for quality construction and flexible configuration, Atlas systems are equally at home in city water applications (chlorine and sediment reduction) and well water multi-stage setups. Their DP series housings are widely regarded as among the best-built in the industry.
Springwell
Springwell offers comprehensive whole-house water treatment systems covering everything from city water conditioning (CF series) to well water iron and manganese filtration (WS series), softeners, and combination systems. Their CF whole-house filter uses catalytic carbon media to address chlorine, chloramines, PFAS, pesticides, and heavy metals — one of the most effective city water whole-house solutions available. Lifetime warranty on tanks and valves.
Waterdrop
Waterdrop has redefined the under-sink reverse osmosis category with compact, tankless designs that deliver filtered water without taking up your whole cabinet. Their RO systems reduce TDS, lead, PFAS, nitrates, and dozens of other contaminants to near-zero levels. The NSF-certified filter cartridges are straightforward to replace. Ideal as a kitchen point-of-use drinking water system paired with a whole-house pre-filter.