Khanh Hoa Province in south-central Vietnam has approved a nearly US$9 million investment to collect and treat wastewater before it reaches Nha Trang Bay, targeting a stretch of coastline that has long discharged raw sewage directly into the national scenic site. According to a report published on 6 October 2026, the provincial administration cleared a VND232 billion (over $8.95 million) project, funded from the provincial budget and scheduled for completion in 2028 Tuoi Tre News | The News Gateway to Vietnam.
Key takeaways
- Khanh Hoa Province approved a VND232 billion (over $8.95 million) wastewater project on 6 October 2026, funded from the provincial budget Tuoi Tre News | The News Gateway to Vietnam.
- Five existing discharge outlets (Hon Chong, Doan Tran Nghiep, Dang Tat, Bac Son and Hon Mot) along the bay will be closed and their flows rerouted Tuoi Tre News | The News Gateway to Vietnam.
- A new pumping facility at the Hon Mot outlet on Pham Van Dong Street will be sized at 50 cubic metres per hour, fed by an 820-metre drainage pipeline with seven manholes Tuoi Tre News | The News Gateway to Vietnam.
- Collected wastewater will be sent to the northern and southern Nha Trang wastewater treatment plants for treatment to environmental standards before discharge Tuoi Tre News | The News Gateway to Vietnam.
- Project owner the Khanh Hoa Development Project Management Board has been instructed to prepare a feasibility study report for the construction project Tuoi Tre News | The News Gateway to Vietnam.
What happened
Provincial authorities in Khanh Hoa announced the approval on Thursday, with the Khanh Hoa Development Project Management Board named as project owner. The decision targets a chronic pollution problem along Pham Van Dong Street in Bac Nha Trang Ward, where untreated wastewater has flowed directly into Nha Trang Bay and the issue has been raised repeatedly by local residents and tourists Tuoi Tre News | The News Gateway to Vietnam.
The approved scope closes the Hon Chong, Doan Tran Nghiep, Dang Tat, Bac Son and Hon Mot discharge outlets, which currently sit along the bay-front catchment. Rainwater from the area between the Hon Chong and Hon Mot outlets will be redirected to the sea through the Ba Lang outlet in Bac Nha Trang Ward, while wastewater in the same catchment is separated from stormwater, collected through new or upgraded separation wells and pumping stations, and conveyed to the northern Nha Trang wastewater treatment plant for treatment to environmental standards Tuoi Tre News | The News Gateway to Vietnam.
Scope of the collection works
At the Hon Mot outlet, about 150 metres north of the Ba Lang-Duong Hien Quyen intersection on Pham Van Dong Street, a pumping station rated at 50 cubic metres per hour will be built. The existing outlet will be closed and stormwater rerouted to the Ba Lang outlet through a new 820-metre drainage pipeline with seven manholes tied into existing inlets on Pham Van Dong Street, and the Ba Lang outlet itself will be upgraded and expanded. The Dang Tat outlet will be closed under the same arrangement Tuoi Tre News | The News Gateway to Vietnam.
South of the bay, all wastewater generated in the Vinh Truong fishing port outlet area in Nam Nha Trang Ward and at the end of an alley off Dong Nai Street will be separated and sent to the southern Nha Trang wastewater treatment plant, while stormwater continues through the existing drainage to the QN3 outlet on the Quan Truong River. At the Quan Truong River outlet, near the intersection of Vo Van Kiet Street (Ring Road No. 2) and Street No. 7 in the Ha Quang 2 urban area, a reinforced-concrete separation well will be built, and a new 300-metre HDPE DN300 gravity sewer will connect it to manhole QT7 on the existing D1200 wastewater pipeline along Thich Quang Duc Street Tuoi Tre News | The News Gateway to Vietnam.
Nguyen Thanh Hien, director of the provincial Development Project Management Board, said the project will "renovate and upgrade the wastewater collection system and gradually complete the existing combined drainage system in Bac Nha Trang and Nam Nha Trang Wards" and that collected wastewater will be sent to the northern and southern Nha Trang wastewater treatment plants "in line with urban drainage and wastewater treatment planning, contributing to the completion of the city's technical infrastructure under approved plans" Tuoi Tre News | The News Gateway to Vietnam.
Deputy chairman of the Khanh Hoa administration Le Huyen instructed the project owner to urgently prepare a feasibility study report for the construction project and, during implementation, to fully incorporate specialised appraisal comments and optimise technical solutions to minimise adjustments to total investment Tuoi Tre News | The News Gateway to Vietnam.
Specification read
Buyer-side scale check. The only flow figure attached to new assets in the approved package is the 50 m³/h pumping station at the Hon Mot outlet, which equals 1,200 m³/day at continuous rating; the project documents do not report a total design flow, a peak wet-weather flow, a daily dry-weather flow, or a population equivalent for the Bac Nha Trang and Nam Nha Trang catchments. Treatment is not in the new scope: the package builds collection, separation and pumping infrastructure only, and conveys the captured wastewater to the existing northern and southern Nha Trang wastewater treatment plants for treatment to environmental standards before discharge, with completion targeted for 2028 Tuoi Tre News | The News Gateway to Vietnam.
Treatment train context. Because the project only intercepts and transfers flow, the buyer-relevant stages are preliminary and primary: screening at the upgraded outlets, grit removal at the separation wells, and pumping/gravity transfer along the new HDPE DN300 sewer and the 820-metre stormwater diversion to the Ba Lang outlet. Secondary and tertiary treatment (biological reactors such as A2O, MBR, MBBR, SBR or UASB, followed by tertiary filtration and disinfection) sit at the receiving northern and southern Nha Trang wastewater treatment plants rather than in this contract; any upgrade to those plants' capacities or discharge limits will be a separate procurement.
What this means for a comparable plant. If you operate a coastal or riverfront combined sewer catchment in Vietnam of roughly 1,200 m³/day at a single overflow point, with high tourism and discharge-pressure stakes and a need to separate stormwater from domestic wastewater before sending flow to an existing municipal plant, the same combination applies: closure of multiple ocean-facing outlets, new HDPE gravity sewer tie-ins, a small pumping station, and a reinforced-concrete separation well on the receiving main. Engineering teams scoping such a package should expect a feasibility study phase, a multi-year construction window, and budget discipline instructions from the provincial owner to keep total investment within the approved envelope Tuoi Tre News | The News Gateway to Vietnam. For broader supplier context see the Industrial Wastewater Management Solutions Providers (2026 Buyer's Guide) and the Data Center Wastewater & Cooling Blowdown Treatment in Hue, Vietnam (2026 Guide).
FAQ
How much has Khanh Hoa approved for the Nha Trang Bay wastewater project? The province approved VND232 billion, or over US$8.95 million, from the provincial budget, with completion targeted for 2028 Tuoi Tre News | The News Gateway to Vietnam.
What is the next procurement step after the 6 October 2026 approval? Deputy chairman Le Huyen instructed the Khanh Hoa Development Project Management Board to urgently prepare a feasibility study report for the construction project before moving to detailed design and tender Tuoi Tre News | The News Gateway to Vietnam.
What treatment train is this project buying? The approved scope covers interception, separation, pumping and pipeline transfer only; biological and tertiary treatment remain at the existing northern and southern Nha Trang wastewater treatment plants, so the buyer-relevant stages are screening, separation wells, pumping stations and HDPE gravity sewer Tuoi Tre News | The News Gateway to Vietnam.
Which discharge outlets are being closed under the plan? The Hon Chong, Doan Tran Nghiep, Dang Tat, Bac Son and Hon Mot outlets will be closed, with stormwater rerouted to the Ba Lang outlet and the Quan Truong River Tuoi Tre News | The News Gateway to Vietnam.
