A typical scenario (an illustrative story, not an interview with any Nong Klang Na resident)

Daeng and her younger sister live only a few hundred metres apart in Nong Klang Na, yet this year's flood treated them as if they lived in different provinces. Daeng's house sits on slightly higher ground; water rose to about shin height and filled her living room and kitchen for several days. Her sister's single-storey house sits in a low spot nearer the water, and the flood rose almost to the roof.

As the water climbed, the two households worked together to lift everything they could: the fridge, the TV, mattresses, sacks of rice and clothes. Some went onto high shelves, some onto a pickup truck parked on a raised stretch of road, and a lot was carried to Daeng's house. Within days Daeng's home was crammed with damp belongings and starting to smell musty.

Meanwhile everyone in the community followed news of the Mae Klong level. Reports said the river was less than a metre from flooding the municipal fresh market, where people buy their food every morning. The worry was no longer only about homes, but about the food families eat every day.

When the water went down, the sisters faced two very different clean-ups. Daeng had floors, lower walls and a houseful of damp stored items to deal with. Her sister had to start with a structural check, remove ceilings and throw out almost everything. They shared the same question: how do we make our homes clean, odour-free and safe for small children and elderly parents?

Where Nong Klang Na Flooded: What the News Report Says

According to Siam Rath on 30 September 2026, the situation in Nong Klang Na subdistrict, Mueang Ratchaburi, was:

• Several communities in Nong Klang Na were flooded as the river overflowed.
• Depths varied widely: almost to the roof at some points, around 50 centimetres at others.
• Households: more than 20 households had to move belongings to higher ground.
• Mae Klong level: measured at 4.20 metres, 80 centimetres short of flooding the municipal fresh market.
• Cause: the Mae Klong Dam releasing 2,400 cubic metres per second.

Nationally, the Department of Disaster Prevention and Mitigation reported on 4 October 2026, via Thai PBS, that flooding continued in 27 provinces plus Bangkok, across 154 districts, affecting 1,171,165 households or 3,262,676 people, with renewed heavy rain warned for 4 to 7 October.

All figures reflect the dates in the reports and change daily. For the status of the municipal market and the Mae Klong after that date, follow the municipality and Ratchaburi province directly.

What these facts tell us is that there is no single recovery recipe for every house in Nong Klang Na. A home flooded to the shin and one flooded nearly to the roof need different care, but both share the same problem: germs and moisture that must be dealt with before the family can move back in with peace of mind.

Different Depths, Different Recovery in Nong Klang Na

Homes flooded to around 50 centimetres

This sounds mild, but it covers every floor, the legs of tables and beds, low cupboards, low sockets and the bottom of every wall. Concrete wicks water higher than the actual waterline. Wooden or laminate floors swell and buckle, plywood cabinets under sinks and shoe racks soften, and rugs, cushions and floor-length curtains soak up dirty water. Move back in without removing and drying these, and mold appears along wall edges and inside cupboards within days.

Homes flooded to waist or chest height

Water reaches tables, chairs, mattresses, wardrobes and most appliances. More than half of each wall is wet, and every socket and switch on that floor was underwater, so an electrician must check the whole system. Submerged mattresses and sofas should go, and lightweight or gypsum lower walls often need to come out.

Homes flooded almost to the roof

A single-storey home that was nearly submerged must start with a structural safety check. Waterlogged ceilings may collapse, entire walls need weeks to dry, almost every belonging is damaged, and the void above the ceiling becomes a store of damp, mold and odour. A builder or specialist should assess the house before work starts, and recovery takes longest here.

Items moved to high ground need checking too

More than 20 Nong Klang Na households moved belongings upward. Even if those items never went under, they were often packed tightly in stuffy spaces, in very humid air for days, some caught by spray or rain, and many handled with floodwater on people's hands. Fabric, mattresses, books and sacks of rice stored close together can start to grow mold and smell musty. Take them out, inspect them, air them in the sun and separate damaged pieces before bringing them back inside.

Every Kind of Germ the Nong Klang Na Flood Can Carry

Water spilling from the Mae Klong into communities is not just river water. It passes through drains, septic tanks, roads and animal areas, carrying several groups of germs into homes. The Department of Disease Control and the CDC agree that proper cleaning and drying is the first line of defence against disease after a flood.

Bacteria

• E. coli: from faeces that enter the water when septic tanks and drains overflow; spreads by hands, utensils and food, causing diarrhoea and stomach pain.
• Leptospira, which causes leptospirosis: carried in rat and animal urine, it enters through cuts and mucous membranes during wading or long exposure. Signs are high fever, headache, severe calf pain and red eyes. See a doctor promptly.
• Salmonella: contaminates food and kitchen areas, causing food poisoning, fever and diarrhoea. With local markets and food shops affected, extra care with food hygiene matters.

Viruses

• Norovirus and rotavirus: cause vomiting and diarrhoea and spread easily through hands, utensils and contaminated surfaces. Young children risk dehydration.
• RSV and influenza: during floods, families crowd into relatives' homes or shelters, are worn out and live in damp air, so respiratory viruses spread more easily.

Mold

Mold can start on wet materials within 24 to 48 hours, which is why the CDC advises cleaning and drying as quickly as possible. It typically appears along wall edges, behind cupboards, under mattresses, in curtains and on items stored tightly together. Airborne spores trigger allergies, congestion, coughing, sneezing and eye irritation, and worsen asthma.

Musty and sewage odours

Mustiness comes from compounds released by mold; the drain-like smell comes from decomposing dirt in the mud. These odours lodge in walls, timber, fabric and cushion foam, so opening windows or spraying perfume will not remove them.

Who is most at risk

Older people, young children, pregnant women and anyone with diabetes, kidney or lung disease or allergies should return after the house has been cleaned, dried and disinfected. Anyone with fever, calf pain, severe diarrhoea or breathing difficulty must see a doctor rather than wait for it to pass.

What Nong Klang Na Families Face After the Water Goes Down

Health: wading to move belongings, lifting heavy loads and cleaning bring risks of cuts, leptospirosis and skin infections. Sleeping in a house that still smells musty and holds mold spores leads to lingering coughs and congestion, especially in children and older people.

Food and daily costs: with the river close to the municipal market, families had to think about where their daily food would come from. Flooded kitchens need every utensil washed and disinfected, and dry food that touched water must be thrown out. These small costs add up.

Money and time: homes flooded almost to the roof need new ceilings, mattresses, furniture and appliances, while shin-deep homes still need floor, lower-wall and cabinet repairs. If recovery is not done properly, returning mold means paying a second time.

Local shops: grocery stores, food stalls and market vendors affected by the water must get their space clean and odour-free before reopening, because customers will not come back to a shop that smells musty or of sewage.

Family and relatives: storing belongings and housing relatives is an important act of kindness, but it also means lightly flooded homes absorb the damp and odour of items stored there. Planning the recovery of both homes together helps everyone get back to normal sooner.

Why Common Approaches Still Fall Short

Assuming shin-deep water needs little work: shallow water brings in germs just as deep water does and still covers every floor. Washing the floor and moving straight back in, without checking lower walls and inside cupboards, is how hidden mold starts.

Bleach on muddy surfaces: bleach is used up by dirt and does not penetrate porous materials. Never mix it with ammonia or some toilet cleaners, as dangerous gases can form.

Running fans and closing the house: fans dry the surface, but moisture inside remains, and closing a damp house invites mold.

Masking odours with perfume, charcoal or coffee grounds: these help a little in small rooms but do not remove the source lodged in materials.

Bringing stored items straight back: belongings kept in damp, stuffy spaces for days may already have mold. Bringing them back unchecked and undried reintroduces mold to the house.

Washing, scrubbing and drying always come first. What adds value afterwards is a step that reaches the whole volume of air and the corners hands cannot, which is the role of ozone treatment.

Ozone Disinfection in Nong Klang Na with WHD: What It Does After Washing and Drying

The residential and building ozone disinfection service from World Health Disinfection (WHD) uses ozone gas (O3), a strong oxidiser, to break down the cell structures of viruses, bacteria and mold and to break apart the molecules behind musty and sewage odours. The ozone then reverts to oxygen (O2), leaving no chemical residue. As a gas, it reaches behind cupboards, under beds, into curtains, into the ceiling void and through the air of the whole room.

According to test results certified for the company by the Department of Medical Sciences and Intertek (UK), WHD's ozone treatment eliminates viruses, bacteria and mold at 99.99%, with full effect when the house has already been cleared of mud, washed and dried. Ozone does not penetrate thick mud and does not replace removing rotted materials.

How the work is done

1. Assessment by phone or LINE: send photos, the waterline and floor area, and mention any rooms holding stored belongings, so the team can plan zones.
2. Readiness check: mud and damaged materials removed, house reasonably dry, food, medicine and plants taken out.
3. Everyone out: people, pets and plants leave. Treatment happens only in an empty, closed space.
4. Ozone fill: typically about 30 minutes per zone, including fill and contact time.
5. Rest and ventilation: the ozone reverts to oxygen, rooms are aired, and you re-enter when the team says so.
6. Zone by zone: flooded rooms, bedrooms and any room used to store relatives' belongings.

WHD is based in Bang Khae, Bangkok, with no branch in Ratchaburi. Service in Nong Klang Na and nearby is arranged by phone on 065-556-6294 or LINE @whd268, and the team confirms travel and timing. Same-day arrival is not guaranteed.

10 Reasons Nong Klang Na Homes Should Consider Ozone After the Flood

1. It suits both lightly and heavily flooded homes, with the number of zones matched to the real damage.
2. Gas reaches corners behind cupboards, under beds and above ceilings that wiping cannot.
3. It breaks down musty and sewage odours at the source rather than masking them. See the WHD ozone disinfection service.
4. No chemical residue, because ozone reverts to oxygen, suiting homes with children and older people.
5. It helps rooms that stored relatives' belongings and turned stuffy and damp.
6. It suits kitchens and food storage areas once utensils are washed and disinfected, adding confidence before cooking again.
7. Company-certified test results show elimination of viruses, bacteria and mold at 99.99%.
8. Short time per zone, typically about 30 minutes plus rest time.
9. It helps local shops get sales areas odour-free before reopening. Read about ozone cleaning.
10. Promotion: a free medical-grade disinfectant spray with ozone jobs of 15,000 baht or more. Ask on the ozone service page.

Example Case: Two Nong Klang Na Homes, Two Water Levels

This example case is a hypothetical scenario based on common house types and problems. It is not a review from a real customer.

Khun Ek, in his early forties, lives in a two-storey townhouse in Nong Klang Na where the ground floor flooded to about 50 centimetres. His parents' single-storey house nearer the river flooded almost to the roof, so they moved into his upstairs rooms with whatever belongings they could save.

When the water receded, Khun Ek started with his own home. An electrician checked the ground-floor sockets, he shovelled out mud, washed the floors, pulled up buckled laminate and the rotted cupboard under the stairs, then opened up the house with fans and a dehumidifier. Next he sorted his parents' stored belongings, threw out moldy mattresses and pillows, and aired and rewashed every piece of clothing.

For his parents' house, he had a builder check the structure first, removed all the sagging ceilings, discarded most of the furniture and left the house open to dry for several weeks.

Even so, the townhouse still smelled musty in the room where belongings had been piled, and his parents' house still held a sewage smell. He contacted WHD on LINE. The team planned the townhouse first, because it dried faster, with zones for the ground floor and the upstairs storage room, and scheduled the parents' house later once the walls were dry enough. Each time, the family left the house completely, and the team treated each zone for about 30 minutes, let it rest and aired it out.

Odours in both homes dropped noticeably, and his parents moved home after new ceilings and fresh paint. The lesson: match recovery to each home's damage, finish cleaning and drying, then use ozone as a follow-up. Older people should still be watched and see a doctor if anything seems wrong.

Nong Klang Na Recovery Checklist: Before and After Ozone

While the water is still up

• Cut ground-floor power and do not use submerged sockets.
• Wear boots and rubber gloves when wading, and cover cuts.
• Wash with soap and clean water right after leaving the water.
• Follow Mae Klong levels and municipal announcements.

After the water goes, before ozone

• Have an electrician check the wiring, and a builder check homes flooded nearly to the roof.
• Discard food, medicine and cosmetics that touched floodwater.
• Remove mud and wash floors, walls and skirting with clean water and cleaning solution.
• Remove buckled laminate, plywood cabinets, light walls and sagging ceilings.
• Discard submerged mattresses, pillows and rugs.
• Take out items moved to high ground, inspect them, sun them and separate moldy pieces.
• Wash and disinfect dishes, glasses and kitchen tools before use.
• Ventilate, use dehumidifiers and do not seal the house while damp.

On ozone day

• Everyone, pets and plants out of the treatment area.
• Leave cupboards and drawers open.
• Close windows, doors and vents.
• Re-enter only when the team confirms rest and ventilation are done.

After ozone

• Keep ventilating for a while.
• Repair walls and floors and repaint once materials are truly dry.
• Watch everyone's health; fever, calf pain, diarrhoea or breathing difficulty means seeing a doctor.
• Buy fresh food from clean sources, wash produce well and cook thoroughly.

FAQ: Ozone Disinfection After the Nong Klang Na Flood

Q: What caused the Nong Klang Na flood?
A: According to Siam Rath on 30 September 2026, the Mae Klong Dam was releasing 2,400 cubic metres per second, and water overflowed into several communities, with the Mae Klong measured at 4.20 metres. The situation changes daily, so follow official announcements.

Q: Our house only flooded to about 50 centimetres. Do we need ozone?
A: It depends. If the house still smells musty after washing and drying, has mold spots, or someone has allergies, ozone can help. The team can assess from your photos.

Q: Can belongings we moved to high ground be treated with the room?
A: Yes, if they are dry and not so damaged they must be thrown out. Remove heavily moldy or submerged items first, then arrange the rest so the gas can reach them.

Q: Can we stay inside during treatment?
A: No. Ozone treatment needs an empty, closed space. People, pets and plants must leave and return after the rest and ventilation period the team advises.

Q: Does WHD have a branch in Ratchaburi?
A: WHD is based in Bang Khae, Bangkok, with no Ratchaburi branch. Travel and timing are confirmed on 065-556-6294 or LINE @whd268. Same-day arrival is not guaranteed.

Q: Someone has fever and calf pain after wading. Will ozone help?
A: This may be leptospirosis. See a doctor immediately. Ozone disinfects the home; it does not treat illness.

Q: Is there a promotion?
A: Ozone jobs of 15,000 baht or more receive a free medical-grade disinfectant spray.

Plan Ozone Disinfection for Your Nong Klang Na Home

Send photos of your home and the waterline to the WHD team to plan zones and a suitable date once it has been washed and dried.

See WHD Ozone Disinfection

Call 065-556-6294 · LINE @whd268 · worldhealthdisinfection@gmail.com

Related Links and References

Related services

• Residential and building ozone disinfection
• WHD disinfection service
• Chemgene disinfectant
• Contact WHD

References

• Siam Rath (30 Sep 2026): flooding in several communities of Nong Klang Na, Mueang Ratchaburi
• Thai PBS: national flood situation from DDPM data (4 Oct 2026)
• CDC: Floods and cleanup safety
• WHO: Fact sheets
• Department of Disease Control, Ministry of Public Health

Note: figures and water conditions are as of the dates stated in news and DDPM reports and change daily.